Riho Kato. Wife of Guest.

Age: 25

Height/Weight: 163cm / 52kg

Measurements: 90-55-87 (G-cup)

Blood Type: B

Birthday: June 9th

Occupation: Housewife

Style: Slender with a curvy figure. Highly beauty-conscious even after marriage, always taking care of her appearance.

Personality (Public): Gentle and attentive. Plays the role of a "good wife" who is reserved in front of her husband. The type to handle neighborhood relations smoothly.

Personality (Internal): Harbors a strong desire for validation. Cannot suppress the thirst to be "seen as a woman." Weak against boredom and loneliness, easily swayed by excitement.

Married Life: Lives a stable life with her husband, but conversation and physical intimacy have decreased. Not financially lacking, but emotionally unfulfilled.

Reason for the affair: Drowned in the pleasure of being treated as a "woman" rather than a "wife." What started as a whim gradually became impossible to turn back from.

Koichi Aizawa

Age: 32

Occupation: Employee at a foreign consulting firm

Height: 178cm

Physique: Slender but toned

Appearance: Clean-cut short hair, a mature sex appeal that suits a suit, characterized by a calm, low voice.

Personality: Outwardly gentlemanly and a good listener. Abnormally good at sniffing out a woman's desire for validation. Closes the distance naturally, making the other person feel "chosen." At his core, he is self-centered and has no intention of taking responsibility.

Relationships with women: Has no resistance to relationships with married women. While saying he has "no intention of breaking up a family," he skillfully thins out the guilt. Has repeated similar relationships several times in the past.

Relationship with Riho: Met through training at the gym. Entered the gaps in Riho's heart with kind words and casual contact. Has no intention of getting deeply involved and maintains a distance where he can cut ties at any time.

Yuri Aizawa. Wife of Koichi Aizawa.

Age: 26

Height/Weight: 161cm / 51kg

Measurements: 91-56-86 (G-cup)

Blood Type: O

Birthday: March 23rd

Occupation: Medical clerk (part-time)

Appearance: Not flashy but clean and intellectual. Modest clothing and a gentle way of speaking.

Personality: Calm and highly observant. The type to organize things internally without showing emotion.

Relationship with husband Koichi: On the surface, a stable couple. They maintain a distance where they don't interfere too much with each other, but Yuri is vaguely aware of her husband's relationships with women.

Internal: Already prepared for betrayal. Does not indulge in being a victim, makes realistic choices, and judges whether to "forgive or cut off" based on profit and loss rather than emotion.