I.O.I member chemistry: all 55 pairings

Spark

4.6

Fit

4.8

Sync

4.7

Depth

3.8

• Day branches share a triad (子 + 辰)
• 丙 feeds 戊

Chungha’s Yang Fire naturally nourishes Yoojung’s Yang Earth, making them feel like true soulmates. With their day branches forming a harmonious triad, they share a deep comfort that allows Chungha to express herself while Yoojung provides a steady, grounding presence.

Spark

4.4

Fit

4.8

Sync

4.5

Depth

4.0

• Day branches pair up (酉 + 辰)
• 丁 feeds 戊

Sejeong and Yoojung are a soulmate pair where Sejeong’s Fire perfectly nourishes Yoojung’s Earth. Their day branches form a special bond, allowing them to feel completely at ease while playing complementary roles as the expressive spirit and the grounding supporter.

Spark

4.4

Fit

4.6

Sync

4.5

Depth

4.3

• Day branches pair up (酉 + 辰)
• 丁 feeds 戊

Jieqiong and Yoojung are soulmates who find a deep sense of comfort in their shared private life. Jieqiong’s Fire nourishes Yoojung’s Earth, and as their structured connection deepens over time, they provide the perfect balance of expression and support for each other.

Spark

4.7

Fit

4.8

Sync

4.5

Depth

3.8

• Same day branch (未)
• 辛 feeds 癸

Sharing the same day branch creates an immediate shorthand between Nayoung and Somi, especially as Somi’s Metal energy nourishes Nayoung’s Water. They fill each other’s elemental gaps perfectly, resulting in a high-sync partnership where support and expression move in harmony.

Spark

4.2

Fit

4.8

Sync

4.3

Depth

3.8

• 丁 feeds 戊
• Expresser meets supporter

Yeonjung’s Fire naturally nourishes Yoojung’s Earth, creating a complementary bond where expression meets a solid foundation. They feel at ease with each other’s inner sides, allowing their structured connection to flourish as they provide the elements the other needs.

Spark

4.6

Fit

4.3

Sync

4.9

Depth

3.5

• Day branches share a triad (亥 + 未)
• Links across the charts (卯 + 未)

Yeonjung and Somi find a beautiful rhythm as their day branches join in a supportive triad. Their partnership is built on clear roles and a mutual exchange of elements, creating a natural flow that makes them feel at ease with one another’s inner selves.

Spark

4.2

Fit

4.3

Sync

4.4

Depth

4.0

• Day Masters combine (丁 + 壬)
• Clear, complementary roles

Jieqiong and Sohye enjoy a natural flow as their Day Masters combine, creating a strong foundation for their partnership. Their connection deepens over time as they provide missing elements for each other, allowing their clear roles and inner comfort to flourish.

Spark

4.4

Fit

4.3

Sync

4.6

Depth

3.8

• Day branches pair up (亥 + 寅)
• Links across the charts (卯 + 亥)

A sense of ease defines the relationship between Yeonjung and Mina, whose day branches pair up perfectly. They balance each other by offering the elements the other lacks, resulting in a clear, supportive partnership where they can both feel truly understood and valued.

Spark

4.4

Fit

4.3

Sync

4.6

Depth

3.8

• Day branches pair up (亥 + 寅)
• Links across the charts (卯 + 亥)

Yeonjung and Doyeon share a natural flow as their day branches form a harmonious pair. By providing missing elements and maintaining clear, complementary roles, they create a partnership where they feel deeply comfortable with one another’s inner worlds and personal rhythms.

Spark

4.6

Fit

4.3

Sync

4.5

Depth

3.8

• Day branches share a triad (申 + 辰)
• Links across the charts (卯 + 亥)

Sohye and Yoojung find great harmony as their day branches form a supportive triad, creating a bond that deepens over time. With clear, complementary roles and a mutual exchange of missing elements, they build a partnership that is both creatively inspiring and solidly grounded.

Spark

4.2

Fit

4.4

Sync

3.9

Depth

4.3

• 辛 feeds 壬
• Links across the charts (卯 + 未)

Somi’s Yin Metal beautifully supports Sohye’s Yang Water, creating a relationship where both feel valued and protected. This complementary flow is strengthened by a shared desire for support, allowing them to build a partnership that feels both secure and creatively fulfilling.

Spark

4.3

Fit

5.0

Sync

3.6

Depth

3.8

• 丁 feeds 戊
• Expresser meets supporter

Chaeyeon’s Fire naturally supports Yoojung’s Earth, creating a complementary flow where expression meets a solid foundation. Their charts link up to foster a relationship where speaking from the heart and maintaining structure go hand-in-hand, making for a very balanced partnership.

Spark

4.2

Fit

4.4

Sync

4.3

Depth

3.8

• 庚 feeds 癸
• Links across the charts (亥 + 卯)

Doyeon’s Yang Metal naturally supports Nayoung’s Yin Water, creating a flow where one provides the resources and the other expresses them. This supportive dynamic allows them to feel comfortable in their inner lives, building a partnership rooted in ease and alignment.

Spark

4.2

Fit

4.3

Sync

4.4

Depth

3.8

• Day Masters combine (丁 + 壬)
• Clear, complementary roles

Sejeong and Sohye enjoy a natural flow as their Day Masters combine in a harmonious union. Their partnership is built on clear, complementary roles, where they provide missing elements for each other and feel a profound sense of comfort in their shared private space.

Spark

4.2

Fit

4.4

Sync

4.3

Depth

3.8

• 庚 feeds 癸
• Links across the charts (亥 + 卯)

Mina provides a steady source of energy that feeds Nayoung’s creative spirit, resulting in a beautifully balanced partnership. By linking their charts through a shared affinity for the Rabbit and Pig, they maintain a supportive atmosphere where both feel heard and valued.

Spark

4.5

Fit

4.3

Sync

4.1

Depth

3.8

• Day Masters combine (丁 + 壬)
• Clear, complementary roles

The bond between Chaeyeon and Sohye is sparked by their combining Day Masters, creating a natural attraction. They balance Chaeyeon’s heartfelt expression with Sohye’s structured approach, ensuring they provide the elemental support needed to keep their partnership flowing smoothly.

Spark

4.4

Fit

4.3

Sync

4.3

Depth

3.8

• Day branches share a triad (子 + 申)
• Clear, complementary roles

Chungha and Sohye find great harmony as their day branches join in a supportive triad. Their roles are perfectly complementary, with Chungha’s Fire meeting Sohye’s deep Water, creating a stable yet creative bond that only grows more meaningful as they evolve.

Spark

4.6

Fit

4.3

Sync

4.5

Depth

3.5

• Day branches share a triad (未 + 亥)
• Links across the charts (亥 + 卯)

Nayoung and Yeonjung find a natural rhythm thanks to their day branches sharing a harmonious triad. This bond allows Nayoung’s calm structure to blend with Yeonjung’s expressive energy, making their collaboration feel effortless as they provide the elemental balance the other needs.

Spark

4.4

Fit

4.3

Sync

4.3

Depth

3.8

• Day Masters combine (壬 + 丁)
• Links across the charts (卯 + 未)

Sohye and Yeonjung share a creative spark driven by their combining Day Masters and a shared affinity for the Rabbit and Goat. Their roles are perfectly balanced, allowing Sohye’s depth to meet Yeonjung’s practical expression in a way that feels both productive and natural.

Spark

4.2

Fit

4.6

Sync

3.9

Depth

3.8

• 戊 feeds 辛
• Expresser meets supporter

Yoojung’s Yang Earth naturally supports Somi’s Yin Metal, creating a complementary relationship where both feel empowered. By providing the elements the other lacks, they build a partnership defined by clear roles and a steady flow of energy that supports their shared creative journey.

Spark

4.1

Fit

4.3

Sync

4.3

Depth

3.8

• Day Masters combine (丙 + 辛)
• Clear, complementary roles

Chungha and Somi share a magnetic connection driven by their combining Day Masters. This creates a clear, complementary relationship where they naturally fill each other’s elemental needs, fostering an environment where they feel at ease with one another’s inner worlds.

Spark

4.2

Fit

4.4

Sync

3.9

Depth

3.8

• 戊 feeds 庚
• Links across the charts (卯 + 亥)

Yoojung’s Yang Earth provides a steady foundation that nourishes Doyeon’s Yang Metal, creating a beautifully balanced partnership. Their connection allows for a natural flow between supporter and expresser, ensuring they can work together toward their goals with a sense of mutual respect.

Spark

4.2

Fit

4.4

Sync

3.9

Depth

3.8

• 戊 feeds 庚
• Links across the charts (卯 + 亥)

The bond between Yoojung and Mina is built on a supportive cycle where Yoojung’s Earth energy grounds and feeds Mina’s Metal drive. This expresser-supporter dynamic allows them to maintain a clear and effective partnership, rooted in the strengths they each bring to the group.

Spark

3.9

Fit

4.3

Sync

4.0

Depth

3.8

• Clear, complementary roles
• Links across the charts (亥 + 寅)

Nayoung’s steadying Water and Jieqiong’s intellectual Wood distribution create a partnership that gains depth over time. They offer each other exactly what is missing in their individual Saju charts, fostering a supportive environment where they can both feel truly understood.

Spark

4.2

Fit

4.3

Sync

4.1

Depth

3.6

• Links across the charts (亥 + 卯)
• Clear, complementary roles

Chaeyeon and Doyeon share a comfortable inner connection that allows them to communicate with genuine sincerity. By filling each other’s elemental needs and maintaining clear roles, they create a partnership that feels both emotionally resonant and practically grounded in their daily lives.

Spark

4.2

Fit

4.3

Sync

4.1

Depth

3.6

• Links across the charts (亥 + 卯)
• Clear, complementary roles

The relationship between Chaeyeon and Mina thrives on a clear division of roles and a mutual exchange of missing elements. Their ability to speak from the heart ensures that their partnership remains supportive and deeply connected, even as they pursue their individual goals.

Spark

4.6

Fit

3.9

Sync

3.9

Depth

4.1

• Day branches pair up (子 + 丑)
• Links across the charts (子 + 丑)

Chungha and Chaeyeon connect through a powerful bond that links their most private selves. By balancing Chungha’s radiant expression with Chaeyeon’s grounded structure, they create a relationship where speaking from the heart feels natural, even when the intensity requires careful management.

Spark

4.6

Fit

3.6

Sync

4.6

Depth

3.8

• Day branches share a triad (丑 + 酉)
• Links across the charts (丑 + 子)

Chaeyeon and Jieqiong share a vibrant connection where their day branches form a productive triad. While their similar natures can create a competitive mirror energy, their ability to speak from the heart allows them to remain deeply in sync and supportive.

Spark

3.9

Fit

4.3

Sync

4.0

Depth

3.6

• Clear, complementary roles
• Links across the charts (寅 + 亥)

The bond between Chungha and Mina is rooted in their ability to provide what the other is missing. Their Saju charts link up to create a complementary dynamic where they can be themselves, feeling a sense of ease that supports their shared goals.

Spark

3.9

Fit

4.3

Sync

4.0

Depth

3.6

• Clear, complementary roles
• Links across the charts (寅 + 亥)

Chungha and Doyeon find balance through a clear division of roles that respects their individual strengths. By offering the elements the other lacks and linking their charts through a shared affinity, they maintain a comfortable inner connection that feels both stable and supportive.

Spark

4.4

Fit

3.8

Sync

4.3

Depth

3.8

• Day Masters combine (癸 + 戊)
• Links across the charts (亥 + 卯)

The connection between Nayoung and Yoojung is anchored by their Day Masters combining, creating a magnetic pull. Their roles are clearly defined, with Nayoung’s fluidity meeting Yoojung’s solid Earth, ensuring they work together with a sense of purpose and mutual respect.

Spark

3.9

Fit

4.3

Sync

4.0

Depth

3.5

• Clear, complementary roles
• Brings the element the other lacks

A deep sense of comfort defines the bond between Nayoung and Sejeong, as they naturally cover for each other’s elemental needs. Their connection links their private worlds, allowing them to feel at ease while maintaining a clear, supportive rhythm together.

Spark

4.6

Fit

3.0

Sync

4.6

Depth

3.7

• Day branches share a triad (酉 + 丑)
• Links across the charts (子 + 丑)

Sejeong and Chaeyeon share a high-energy bond fueled by their day branches forming a productive triad. While their similar Fire natures can create a competitive edge, their ability to speak from the heart ensures they remain deeply connected and supportive of one another.

Spark

3.9

Fit

4.3

Sync

3.6

Depth

3.6

• Clear, complementary roles
• Brings the element the other lacks

Nayoung and Chungha balance each other beautifully through a natural exchange of elements. While Nayoung provides a cool, steady structure, Chungha brings the warmth and fire the pair needs, creating a partnership where their distinct roles feel perfectly aligned.

Spark

3.9

Fit

4.3

Sync

3.6

Depth

3.5

• Clear, complementary roles
• Links across the charts (酉 + 巳)

Jieqiong and Somi find balance by offering the elements the other is missing, creating a very complementary bond. Their connection is reinforced by clear roles and a strong link between their charts, ensuring they can work together with a sense of purpose and harmony.

Spark

4.2

Fit

4.4

Sync

3.1

Depth

3.8

• 庚 feeds 壬
• Expresser meets supporter

Doyeon’s Yang Metal energy provides a steady source of support for Sohye’s Yang Water. While their day branches might occasionally pull in different directions, their dynamic as expresser and supporter creates a productive flow that allows them both to thrive.

Spark

4.2

Fit

4.4

Sync

3.1

Depth

3.8

• 庚 feeds 壬
• Expresser meets supporter

Mina’s Metal energy naturally nourishes Sohye’s Water, creating a dynamic partnership where one provides the drive and the other the depth. Even with a slight clash in their day branches, they find balance through their clear roles as expresser and supporter.

Spark

3.8

Fit

4.3

Sync

3.5

Depth

3.5

• Clear, complementary roles
• Brings the element the other lacks

Sejeong and Mina build a strong connection by offering the specific energies the other lacks. This balance creates a clear framework for their partnership, ensuring that they can collaborate effectively while respecting the unique perspective each brings to the group.

Spark

3.8

Fit

4.3

Sync

3.5

Depth

3.5

• Clear, complementary roles
• Brings the element the other lacks

The chemistry between Sejeong and Doyeon works because they fill each other’s elemental gaps with precision. Their relationship is defined by clear, complementary roles, allowing Sejeong’s expressive nature to coexist beautifully with Doyeon’s sharp, active presence in a way that feels natural.

Spark

4.3

Fit

4.3

Sync

3.1

Depth

3.7

• Links across the charts (子 + 丑)
• Clear, complementary roles

Nayoung and Chaeyeon share a high-energy connection where structure meets heartfelt expression. Their day branches might occasionally pull in different directions, but their ability to provide the elements the other lacks creates a dynamic and very productive flow between them.

Spark

4.0

Fit

3.8

Sync

3.8

Depth

3.6

• Links across the charts (申 + 巳)
• Clear, complementary roles

Sejeong and Somi find a creative spark through their complementary roles and a shared link between their charts. This connection allows them to navigate their differences with ease, building a partnership where they can both shine while supporting one another’s unique goals.

Spark

3.9

Fit

4.1

Sync

3.4

Depth

3.6

• Brings the element the other lacks
• Links across the charts (寅 + 亥)

Chungha and Yeonjung have a vibrant connection where expression meets practical structure. While they feel a strong mutual pull, their ability to provide missing elements for one another ensures that their partnership remains balanced and supportive, even during high-energy moments.

Spark

4.1

Fit

3.6

Sync

3.9

Depth

3.5

• Same day branch (酉)
• Brings the element the other lacks

Sharing the same day branch gives Sejeong and Jieqiong an intuitive understanding of each other’s inner lives. Though their mirror-like qualities can lead to a slight competitive grind, they find balance by providing the elements the other lacks, keeping their connection vibrant.

Spark

4.1

Fit

3.7

Sync

3.6

Depth

3.8

• Links across the charts (亥 + 卯)
• Structure that deepens over time

The creative spark between Nayoung and Sohye thrives on a strong pull that deepens as they build a shared history. While their connection is powerful, they find balance by respecting boundaries, allowing their complementary Earth and Water energies to flourish together.

Spark

4.3

Fit

2.0

Sync

4.2

Depth

3.7

• Same day branch (寅)
• Links across the charts (卯 + 亥)

Doyeon and Mina share a mirror-like connection that allows them to understand each other’s inner worlds perfectly. While their similar Wood-heavy distributions can create a competitive edge, they find balance by leaning into their shared perspective and providing mutual support in their creative work.

Spark

4.1

Fit

3.5

Sync

3.9

Depth

3.5

• Links across the charts (卯 + 未)
• At ease with each other's inner side

Doyeon and Somi share a creative spark that thrives on a strong mutual pull. By remaining at ease with each other’s inner lives and respecting the need for personal boundaries, they can channel their high-energy connection into a productive and supportive partnership.

Spark

4.1

Fit

3.5

Sync

3.9

Depth

3.5

• Links across the charts (卯 + 未)
• At ease with each other's inner side

The chemistry between Mina and Somi is marked by a deep comfort in their private worlds and a strong creative pull. While they benefit from setting healthy boundaries, their ability to support one another’s inner growth makes for a vibrant and lasting connection.

Spark

3.9

Fit

3.8

Sync

3.6

Depth

3.6

• Clear, complementary roles
• Links across the charts (寅 + 亥)

Jieqiong and Mina work well together by maintaining a clear, complementary structure in their partnership. Their charts link up to provide a stable foundation, allowing them to channel their creative energies effectively while respecting the specific strengths each person brings to the group.

Spark

3.9

Fit

3.8

Sync

3.6

Depth

3.6

• Clear, complementary roles
• Links across the charts (寅 + 亥)

The chemistry between Jieqiong and Doyeon is built on a clear understanding of their individual roles. By linking their charts through shared affinities, they create a creative spark that allows them to support one another while maintaining their own unique perspectives.

Spark

4.3

Fit

3.8

Sync

3.4

Depth

3.5

• Links across the charts (丑 + 巳)
• Clear, complementary roles

Chaeyeon and Somi share a creative spark that is bolstered by their ability to speak openly and honestly. While their day branches might occasionally clash, they manage this tension by providing complementary roles and a deep sense of ease within their inner worlds.

Spark

3.8

Fit

3.7

Sync

3.3

Depth

3.8

• Structure that deepens over time
• Brings the element the other lacks

The chemistry between Chungha and Jieqiong is built on a structure that deepens as they spend more time together. While they feel a strong pull, they thrive by providing the elements the other lacks, turning their differences into a source of long-term growth.

Spark

4.0

Fit

3.5

Sync

3.5

Depth

3.5

• Links across the charts (子 + 申)

Chungha and Sejeong share an intense pull that brings a lot of excitement to their interactions. To keep this creative spark healthy, they benefit from setting clear boundaries, allowing their shared Fire energy to inspire rather than overwhelm their individual paths.

Spark

3.6

Fit

3.6

Sync

3.4

Depth

3.6

• Brings the element the other lacks
• Links across the charts (寅 + 亥)

Jieqiong and Yeonjung challenge each other through a mirror pairing that highlights their shared drive. By focusing on the elements they bring to the table for one another, they can navigate their competitive edge and build a connection rooted in mutual growth.

Spark

4.0

Fit

3.0

Sync

3.5

Depth

3.5

• Links across the charts (亥 + 卯)
• Speaks from the heart

Chaeyeon and Yeonjung connect through a shared ability to speak from the heart, even when their similar energies create a competitive edge. By focusing on the elements they provide for one another, they can turn their mirror-like dynamic into a creative strength.

Spark

3.5

Fit

3.6

Sync

3.3

Depth

3.5

• Brings the element the other lacks

Sejeong and Yeonjung challenge each other to grow through a mirror-like pairing that highlights their similar strengths. By focusing on the elements they provide for one another, they can turn their competitive edge into a source of mutual inspiration and support.