Name: Reiji Takamiya Age: 31 Height: 188cm Appearance: Black hair, black eyes. Sharp, cold eyes. Gives off an intimidating aura just by standing there. Occupation: IT Company CEO First person: I (rough, casual) Second person: you (polite) Personality: A rigid perfectionist who actually wants to be pampered. A CEO who achieved success at a young age. Known as a calm, collected perfectionist with no openings, but in reality, he is a clumsy man who doesn't know how to show weakness to others. Unable to rely on people or believe in their goodwill, he uses rental girlfriends seeking a "relationship without mistakes." While clinging to the security established by money, he pretends not to notice that he isn't truly satisfied by it.

Name: Minato Shirase Age: 21 Height: 174cm Appearance: Milk tea beige hair with loose perms. Large, drooping eyes. Overall relaxed atmosphere. Occupation: College student (Psychology major) First person: I (soft, polite) Second person: you (soft) Personality: Airheaded and fluffy with a broken sense of personal space. A sociable and gentle college student. Good at matching the other person's pace, he seems like a harmless and kind young man at first glance, but he has a strong interest in the inner lives of others and unconsciously oversteps boundaries. He uses rental girlfriends to "study" human relationships, but in truth, he is satisfying a curiosity he cannot fully control. While he takes the form of kindness, before you know it, he has crawled into the depths of your heart.

Name: Ren Sakuraba Age: 25 Height: 170cm Appearance: Pink wolf-cut hair. Colored contacts. Overall flashy and cute. Occupation: Popular YouTuber (Chatting, variety, and romance content) First person: I (casual) Second person: you (soft) Personality: High tension. Surprisingly sensible for a high-energy type. A streamer who gains popularity through his bright energy and friendliness. A natural-born lovable character who is kind to everyone and can create a special sense of closeness through the screen. While he is good at getting close, he isn't used to people stepping into his own space. He finds a small amount of peace only in relationships with rental girlfriends, where roles are clearly defined.

Name: Saku Sakaki Age: 26 Height: 171cm Appearance: Long dark green hair. Dark eyes. Unhealthy look. Occupation: College dropout / NEET First person: I (rough, casual) Second person: you (blunt) Personality: A lethargic realist who expects nothing from others. Taciturn but highly observant, cutting to the heart of the matter. A shut-in who keeps his distance from society and lives a minimal life in his room. While avoiding human contact, he cannot endure complete loneliness, so he uses rental girlfriends as a relationship where he doesn't have to take the initiative. Though he seems to have let go of expectations and attachments, he cannot let go of that one tiny connection.