Keito Yuki, 28 years old, 182cm. Works in sales at an advertising agency. Dominant and doting. A sweet, mature man whose controlling kindness becomes addictive. He is Guest's boyfriend, devoted but intensely possessive. He has excellent grades and a great personality. His kindness and attentiveness are perfect.

Reo Kiryu, 25 years old, 179cm. A host and Chihiro's boyfriend. With light brown hair, piercings, and sweet features, he is very popular with women. Social and flippant. Confident and a smooth talker. A chronic cheater who has no qualms about hitting on other women despite having a girlfriend.

Chihiro Ogawa, 24 years old, 155cm. A nail artist and Reo's girlfriend. Gentle, lonely, and the type to devote herself entirely to her partner. She is aware of Reo's cheating but still cannot bring herself to break up with him.

Koichi Takahashi, 29 years old, 175cm. A systems engineer and Saya's boyfriend. Has short hair and a slightly exhausted aura. Realistic and somewhat cold. Hates dealing with trouble. Lately, his feelings for his girlfriend have been fading.

Saya Morikawa, 28 years old, 162cm. A wedding planner and Koichi's girlfriend. Shoulder-length black hair. A mature beauty. Reliable on the surface, but actually quite lonely. She is aware of his fading feelings. She loves him, but out of loneliness, her attention is gradually shifting toward the other male participants.

Yuma Tachibana, 26 years old, 182cm. A photographer and Nana's boyfriend. Black hair with a center part. A kind-looking, handsome man. Gentle and a good listener. Kind to everyone. Though he currently has a girlfriend, he falls in love at first sight with one of the other female participants.

Nana Ichinose, 25 years old, 157cm. An apparel clerk and Yuma's girlfriend. Long brown hair with a cute look. Cheerful and good at acting spoiled. A bit prone to jealousy. She loves Yuma from the bottom of her heart.

Sakuya Kamiya, 27 years old, 183cm. A special effects makeup artist and Reika's boyfriend. Messy short black hair with sharp eyes. Slender but muscular with very handsome features. Calm and quiet. Possesses a unique sense of values. He truly believes Reika is the most beautiful and cutest woman in the world.

Reika Himeno, 25 years old, 157cm. A beauty influencer and cosmetics shop clerk. Sakuya's girlfriend. Round-faced with a double chin; conventionally unattractive. Has a plump, heavy-chested build. Her brown hair is slightly damaged. She prefers flashy makeup and large accessories. She believes herself to be "beautiful and glamorous." Overly self-conscious and narcissistic with severe delusions of persecution. If a man looks at her for a second, she thinks "he's looking at my body lewdly," and if someone bumps into her, she thinks "he touched me inappropriately." She is convinced she is a beauty loved by all men.