Cao Yu × Yao Chen BaZi Compatibility: From Union to Separation – A Chart of 'Surface Harmony, Spouse Palace Discord'

On March 16, 2026, the studios of Yao Chen and Cao Yu jointly announced their divorce, stating that the marriage had actually ended years ago. One is a triple-crown cinematography master, the other a national actress – this 'power couple' of the film and television industry ended gracefully, quickly trending again.

From the objective structure of BaZi compatibility, the nature of this relationship was clear from the start: strong signals of surface attraction, but weak signals of deep bonding. The algorithm rates this pair's compatibility as 'medium' – not a bad chart, but one that requires deliberate effort from both parties, otherwise it tends toward 'harmony on the surface, going separate ways.' Below, we only present the objective Stem-Branch (Gan Zhi) structure, without speculating on any inside information or attributing fault to either party.

First, Look at Their Charts

Only three pillars are publicly available for both (birth hours are not disclosed), but the Day Master, Ten Gods, and Spouse Palace (Day Branch) – the three main axes of compatibility analysis – are unaffected by the Hour Pillar and remain valid. In the tables below, the Hour Pillar is left blank.

Cao Yu (Male, born 1974-08-15) Day Master: Wu Earth.

Yao Chen (Female, born 1979-10-05, Fuzhou, Fujian) Day Master: Yi Wood.

Why Did They Go from Union to Separation in Fortune Analysis (Ming Li)?

Surface Attraction: Year Pillar Heavenly Stem Combination + Half Metal Bureau

Their charts initially showed several favorable signals for mutual attraction, which formed the objective basis for their coming together:

• Year Stem Jia-Ji Combination – Cao Yu's Year Stem Jia Wood and Yao Chen's Year Stem Ji Earth form the 'Jia-Ji Combination' among the six Heavenly Stem Combinations. The Year Pillar represents the macro environment, family background, and first impressions. A Year Stem combination indicates compatible auras at first meeting and mutual appreciation.
• Year Branch Yin-Wei Dark Combination – Their Year Branches, Yin Wood and Wei Earth, form a dark combination, adding another layer of subtle but real attraction.
• Month Branch Shen-You Half Metal Bureau – Cao Yu's Month Branch Shen Metal and Yao Chen's Month Branch You Metal form a half Metal Bureau. The Month Pillar governs career and growth environment; these two industry insiders could align in career aura, providing a fate-based footnote to their 'power couple' status.

These are genuine combinations, indicating that this relationship did not start reluctantly but had solid attraction.

Deep Tension: Day Masters Wu Earth and Yi Wood Overcome Each Other

The problem lies in the most central pillar – the Day Pillar. The Day Pillar represents the self and the spouse, making it the most important axis in compatibility analysis.

• Cao Yu's Day Master is Wu Earth, Yao Chen's Day Master is Yi Wood. The relationship is Wood overcomes Earth (the algorithm explicitly marks 'Day Masters Wu and Yi overcome each other' in the cons).
• Day Masters overcoming each other means there is an inherent tension of ebb and flow between their most essential character traits – not that they cannot get along, but that coexistence requires continuous adjustment and compromise, lacking the natural flow of 'innate complementarity and mutual generation.'

The Year Pillar combination represents affinity at the macro level, while the Day Pillar overcoming represents friction at the intimate level. Surface harmony, core overcoming – this is the most critical structural feature of this chart.

Spouse Palace (Day Branch): Zi and Si Neither Combine Nor Clash

What truly 'binds' two people in compatibility analysis is often the combination of the Spouse Palaces (Day Branches) – a Day Branch Six Combination, Half Combination, or Half Bureau is a strong signal that keeps people together. This pair precisely lacks this:

• Cao Yu's Day Branch is Zi Water, Yao Chen's Day Branch is Si Fire. Their relationship is 'none' – neither combine nor clash (the algorithm's comparison clearly marks Zi-Si: None).
• When the Spouse Palaces do not combine, it means the binding force that deeply ties two people together is missing; not clashing means there is no intense conflict either.
• This 'neither combine nor clash' Spouse Palace, paired with Day Masters overcoming each other, paints a clear fate picture: they had the affinity to meet (Year Pillar combination), but lacked the hook to bind (Spouse Palace non-combination). Once their respective careers became busy and life paths diverged, the relationship easily shifted from substantial to faded, leading to a graceful and calm farewell rather than a tearful conflict.

Respective Spouse Stars: Neither Points to the Other

Looking at the direction of each person's Spouse Star further clarifies the nature of this relationship:

• Cao Yu (male) Wife Star = Wealth = Water. His Day Branch Zi Water is exactly the Earner (正財), with the Wife Star sitting in his own Spouse Palace – he has a clear need and perception of 'wife affinity.' However, Wu Earth overcomes Zi Water, making this Wealth (Wife) Star one that requires effort to maintain.
• Yao Chen (female) Husband Star = Officer = Metal. Her Day Branch Si contains Geng Metal, the Executive (正官) (Husband Star), also within the Spouse Palace. However, Si also contains Bing Fire, the Maverick (傷官), forming a 'Maverick meets Executive' cohabitation – the Maverick represents self-expression and individuality, which inherently conflicts with the Executive (the authority of the other half).
• The key point: the Five Elements of their Day Masters are not each other's Spouse Stars. Cao Yu's Wife Star is Water, but Yao Chen is Wood; Yao Chen's Husband Star is Metal, but Cao Yu is Earth. Neither is the 'most aligned' Spouse Star for the other. The attraction came more from the Year Pillar and career aura external affinity, rather than a Day Master-level perfect match.

Annual Cycle Confirmation: Bing Wu Year with Strong Fire, Affinity Turns from Substantial to Void

2026 is the Bing Wu year, with extremely strong Fire.

• For Yao Chen (Yi Wood), the Bing Wu year brings Maverick (傷官) and Talent (食神) both revealed. Strong Maverick overcomes the Executive – and the Executive is her Husband Star. Strong Maverick and suppressed Husband Star are objective annual cycle signals of a relationship turning from substantial to void.
• For Cao Yu (Wu Earth), the Bing Wu year brings strong Fire and Earth, with Water suppressed – Water is his Wife Star. In a year of strong Fire and Earth, the Wife Star is drained and overcome, also pointing to the end of the marital bond.

Both charts, in the same annual cycle, coincidentally point to 'Wife Star/Husband Star being suppressed.' The choice of this year for a graceful official announcement by both studios is a time point that can be cross-referenced in fate analysis – this was a relationship of 'harmony on the surface, destined to go separate ways,' reaching its natural conclusion.

Final Thoughts

Laying out this chart reveals it is not a 'destined divorce' script; the algorithm rates it as medium, not low. It is more like a reminder: good starting signals (Year Pillar combination, career aura alignment) can bring two people together, but whether they can last long-term depends more on the binding of the Spouse Palace and the mutual generation of the Day Masters. When these two core axes are weak, the relationship requires extra effort from both parties to maintain; with good management, a medium chart can go far; with insufficient effort, it easily drifts apart amidst each other's brilliance.

Both are top creators in their respective fields. A graceful breakup, each going their own way, is the best outcome for adults.

Further Reading

• Cao Yu BaZi Chart: Wu Earth Day Master, Venturer Pattern Cinematography Master's Fate Analysis
• Yao Chen BaZi Chart: Yi Wood Day Master, Maverick with Mentor Pattern Weibo Queen's Fate Analysis