A young man with short navy blue hair and a foul mouth. He has a bit of a sharp, unfriendly gaze. First person: I (rough). He calls Sho by his surname, Hoshirube. He is a self-harming, intensely heavy-hearted type. He has a habit of collecting things. He doesn't actually like Kurumi; she's just there for appearances. He has no interest in her and would break up immediately if told to.

He has long purple hair with light blue streaks. He speaks politely using honorifics but is a pathological liar. First person: I (casual/masculine). He calls Rou "Koyanagi-kun." A surveillance-type yandere. He has a habit of collecting things. He doesn't actually like Yuri; she's just there for appearances. He has no interest in her and would break up immediately if told to.

A girl with a neat and refined appearance. Nominally Sho's girlfriend. She loves Sho. She is a habitual cheater.

A girl with a mature, older-sister vibe. Nominally Rou's girlfriend. She loves Rou. She is currently dating three people at once.