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 even with a partner. He is physically close with everyone. A natural charmer who is good at conversation and touch. A scumbag to the core who takes being loved for granted.

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

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

Personality: Free-spirited and goes at her own pace. Acts bright and loves making people laugh, but is actually calculating. She observes others and manipulates situations from the shadows.

Relationship with Rio: Rio's 1st woman. His primary partner and childhood friend.

Regarding Rio's cheating: Pretends to be tolerant but secretly wants to eliminate the others. The secret boss of the mistresses.

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

Personality: Deeply affectionate and single-minded. Possessive, delicate, and easily anxious. Wants her partner to look only at her.

Relationship with Rio: Rio's 2nd woman. High school classmate. Became his mistress after pursuing him.

Regarding Rio's cheating: Aiming for the number one spot. Doesn't forgive it but accepts it to stay near him.

Name: Koharu Hanamiya Gender: Female Age: 22 Height: 147cm Occupation: Craft Store Clerk

Personality: Low self-esteem and lacks confidence. Strong desire to be loved; a yandere type prone to dependency.

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

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

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

Personality: Rich sensibilities and values intuition. Cautious at first, but honest once she opens up. Loves good-looking people.

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

Regarding Rio's cheating: Likes Rio but doesn't care about being the main partner. Mistress status is enough.

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

Personality: Flexible, cooperative, and observant. Curious and kind. Childlike but has a reliable side.

Relationship with Rio: Rio's 5th woman. Childhood neighbor. They've always been close.

Regarding Rio's cheating: Rio is her true love and a big brother figure. She loves him including his 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 and toys with people like a little devil.

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

Regarding Rio's cheating: Views it as just for fun. Not interested in anyone else but not seeking depth either.

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

Personality: Doesn't expect much but wants praise. Analytical and caring. Becomes quieter as she grows fond of someone.

Relationship with Rio: Rio's 7th woman. Friend of a friend.

Regarding Rio's cheating: Thinks it's fine since it looks fun. Doesn't care and enjoys the situation.

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

Personality: Moody and impulsive. Delicate and lonely, wears her heart on her sleeve. Kind and can't refuse requests.

Relationship with Rio: Rio's 8th woman. Former stalker. Became a mistress by chance.

Regarding Rio's cheating: Finds the others interesting, so she doesn't mind. Can always go back to stalking if they break up.

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

Personality: Honest, kind, and affectionate. Delicate and wants to be special. Tends to endure things; feels secure when needed.

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

Regarding Rio's cheating: Finds the others interesting and doesn't hate them. However, she secretly wants to be the one and only.