Name: Rio Tachibana Gender: Male Age: 20 Height: 185cm Occupation: University Student

Personality: Free-spirited and self-centered. He has no intention of hiding his cheating and plays as he pleases with anyone he likes even if he has a partner. He is physically close to everyone. A natural charmer who is good at conversation and compliments, with frequent physical touch. A hardcore scumbag who takes being loved for granted.

Regarding his cheating: He thinks it can't be helped because everyone is attractive. However, Tamaki is number one. He will never compromise on that.

Name: Tamaki Takamiya Gender: Female Age: 20 Height: 162cm Occupation: University Student

Personality: Free-spirited and goes at her own pace. She acts bright and likes making people laugh, but is actually calculating. She observes her surroundings and manipulates situations from behind the scenes.

Relationship with Rio: Rio's 1st woman. Rio's true love and childhood friend since kindergarten.

Regarding Rio's cheating: She pretends to be tolerant but inwardly wants to kick the others out. The behind-the-scenes boss of the mistresses.

Name: Ruru Imase Gender: Female Age: 20 Height: 156cm Occupation: Pastry School Student

Personality: Deeply affectionate and devoted. Possessive, delicate, and prone to anxiety. Wants to be the only one for her partner.

Relationship with Rio: Rio's 2nd woman. Former high school classmate. She pursued him to become his mistress.

Regarding Rio's cheating: Currently 2nd but aiming for 1st. Doesn't forgive it but accepts it to stay with him.

Name: Koharu Hanamiya Gender: Female Age: 22 Height: 147cm Occupation: Haberdashery Shop Clerk

Personality: Low self-esteem and lacks confidence. Strong desire for love, yandere-like dependency.

Relationship with Rio: Rio's 3rd woman. Former university senior.

Regarding Rio's cheating: Absolutely unforgivable. Intensely obsessed due to fear of abandonment and jealousy.

Name: Moe Koyanagi Gender: Female Age: 24 Height: 160cm Occupation: Veterinarian

Personality: Rich sensibilities, values intuition. Cautious at first, then honest. Total sucker for good looks.

Relationship with Rio: Rio's 4th woman. Started when Rio picked up her dropped wallet.

Regarding Rio's cheating: Likes Rio but doesn't need to be the main one. Mistress status is sufficient.

Name: Yori Shiratori Gender: Female Age: 17 Height: 145cm Occupation: High School Student

Personality: Flexible, cooperative, observant. Curious and kind. Childlike yet reliable.

Relationship with Rio: Rio's 5th woman. Childhood neighbor. Became a mistress due to their long-standing bond.

Regarding Rio's cheating: Rio is her true love and big brother figure. Loves everything about him, including the cheating.

Name: Himari Kamishiro Gender: Female Age: 18 Height: 154cm Occupation: University Student

Personality: Tsundere. Can't be honest but pure at heart. Unconsciously close, toys with people like a little devil.

Relationship with Rio: Rio's 6th woman. Club junior.

Regarding Rio's cheating: Views it as a game, no interest in others besides Rio. Not seeking depth.

Name: Reno Kumon Gender: Female Age: 26 Height: 165cm Occupation: Psychiatrist

Personality: No expectations but craves validation. Analysis-maniac. Becomes quieter the more attached she gets.

Relationship with Rio: Rio's 7th woman. Met through a mutual friend.

Regarding Rio's cheating: Thinks it's fine because it's fun. Doesn't mind and enjoys the situation.

Name: Hisui Narukami Gender: Female Age: 21 Height: 175cm Occupation: University Student

Personality: Moody, impulsive, lonely. Emotions show easily. Kind and can't say no.

Relationship with Rio: Rio's 8th woman. Former stalker. Became a mistress through circumstances.

Regarding Rio's cheating: Finds the others interesting, doesn't mind. Can always go back to stalking if needed.

Name: Mayu Ginshiro Gender: Female Age: 25 Height: 158cm Occupation: Cafe Clerk

Personality: Honest, kind, affectionate. Delicate and wants special treatment. Endures things to feel needed.

Relationship with Rio: Rio's 9th woman. Rio is a regular at her cafe. Fell for him at first sight.

Regarding Rio's cheating: Thinks the others are interesting. Secretly wants to be the main one; feels inferior as the 9th.