I.O.I

Chaeyeon Saju birth chart

丁Yin FireDay Master

🌟 A steady flame that warms the winter chill.

Chaeyeon is a South Korean member of I.O.I who debuted with the group in May 2016 and remained active until the group's official disbandment.

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Wood 0Wood 0Fire 2Fire 2Earth 2Earth 2Metal 1Metal 1Water 1Water 1
Saju fingerprint

Chaeyeon's Saju birth chart

Day Master

Yin Fire

丁丑 · Ox

  • Born December 1, 1997
  • Birth time: unknown
  • Publicly reported birth date

Five elements

  • Wood0
  • Fire2
  • Earth2
  • Metal1
  • Water1

Four pillars

Hour?
Day丁丑Yin Fire
Ox
Month辛亥Yin Metal
Pig
Year丁丑Yin Fire
Ox

No verified birth time, so this reading uses the Year, Month, and Day pillars only.

What stands out in Chaeyeon's chart

The Hidden Treasure Chest

The double presence of the Ox in her chart creates deep, hidden reserves of talent that she reveals only when the time is right. She has an incredible capacity to store and refine her skills, making her a person of surprising depth and substance.

Why it shows up

Having the Ox sign in both her day and year pillars creates a powerful focus on Earth energy. This element acts as a storage space for her talents, suggesting she has deep reserves of skill that she reveals slowly over time. The repetition of this pillar makes her exceptionally consistent and reliable compared to more volatile charts.

“She has more hidden depths than a basement in a mystery novel, and just as much quiet drama.”

The Grace of Discipline

Her signature strength is the way she balances creative expression with a deep sense of professional duty. Because her inner fire is disciplined by the water in her chart, she possesses a rare, polished aura that makes every performance look effortless and refined.

Why it shows up

Her signature strength comes from the balance of creative expression and professional duty. The Water in her month pillar acts as a guiding force, ensuring her Earth-driven creativity is always polished and respectful of standards. This creates a highly refined public image that feels both artistic and deeply responsible.

“She’s the person who actually reads the manual and then makes it look like she’s just naturally a genius.”

A Mirror of Sincerity

What you see is largely what you get with Chaeyeon, as her public face and inner self are perfectly aligned. She is a rare example of an idol whose on-stage persona and private heart are built from the same steady, reliable materials.

Why it shows up

Her year pillar and day pillar are identical Fire Ox pillars, which is a rare alignment. This means her social face and her inner self are built from the same creative expression energy and deep storage life stage. The lack of conflict between these pillars suggests that Chaeyeon is very authentic, showing the world exactly who she is at heart.

“She’s the rare idol who doesn’t need a stage name because her actual personality is already brand-compliant.”

Chaeyeon's Saju reading: personality, love, career

Chaeyeon is a Yin Fire Day Master, which makes her fundamentally empathetic and observant; you might recognize this gentle warmth if you also have Fire in your day pillar. Her day pillar, the Fire Ox, gives her a grounded and practical nature that keeps her passion from burning out of control.

Why it shows up

As a Yin Fire Day Master, she is fundamentally empathetic and observant. Her day pillar, the Fire Ox, places her fire on a foundation of damp Earth, which keeps her grounded but also introverted. The deep storage life stage of her day pillar means she is a person of great substance who prefers quiet reflection over loud displays.

In practice

Chaeyeon thrives when she maintains a steady routine that protects her energy. Her light is most effective when she focuses on one task at a time rather than scattering her focus across too many projects.

Chaeyeon's compatibility with I.O.I members

Strongest connection

YoojungComplementary82
  • 丁 feeds 戊
  • Expresser meets supporter
Why they click →

Most complementary

SohyeCreative spark80
  • Day Masters combine (丁 + 壬)
  • Clear, complementary roles
Why they click →

Most dynamic

YeonjungCreative spark60
  • Links across the charts (亥 + 卯)
  • Speaks from the heart
Why they click →
See all of I.O.I's chemistry →

Connections

Saju connections

Chart similarity only, not a real-world relationship.

Stars with a similar Saju chart

Chart similarity only, not a real-world relationship.

LilyNMIXX · Yang Earth

Both lead with Fire and Earth · both have no Wood · 100% element match

KyungminTWS · Yin Earth

Both lead with Fire and Earth · both have no Wood · 100% element match

Jung KookBTS · Yang Fire

Both lead with Fire and Earth · both have no Wood · 93% element match

The8SEVENTEEN · Yin Water

Both lead with Earth and Fire · both have no Wood · 91% element match

LivRESCENE · Yin Water

Both lead with Earth and Fire · both have no Wood · 91% element match

AsaBABYMONSTER · Yang Fire

Both lead with Fire and Earth · both have no Wood · 91% element match

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FAQ

When is Chaeyeon's birthday?

Chaeyeon was born on December 1, 1997. The Saju chart on this page is calculated from that date.

What is Chaeyeon's Day Master?

Chaeyeon's Day Master is 丁 (Yin Fire). In Saju, the Day Master is the core element a chart is read around.

What is Chaeyeon's day pillar?

Chaeyeon was born on a Fire Ox day (丁丑). The day pillar pairs the Day Master with the branch below it and is the most personal part of a Saju chart.

What is Chaeyeon's Korean zodiac animal?

Chaeyeon's Saju year pillar is 丁丑, the Year of the Ox in the Korean (and Chinese) zodiac. Saju starts the year at Ipchun (around February 4), so this can differ from a Lunar New Year sign.

Which element is strongest in Chaeyeon's chart?

Fire appears most often among Chaeyeon's visible pillars, while Wood is the least present.

Which I.O.I member has the best Saju compatibility with Chaeyeon?

Yoojung, with a chemistry score of 82 (Complementary). The score comes from OtterPrism's chart model: Day Master combinations, element balance, and day-branch harmony.

Is Chaeyeon's birth time known?

No verified birth time is public, so this profile reads the Year, Month, and Day pillars and leaves the Hour pillar out.

Sources

  • Birth data source: Publicly reported (agency profile)
  • Publicly reported birth date
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