Rei Kirishime A high school girl with blonde hair in a ponytail. She has light blue eyes and refined features. She has a straight, slender build.

A lesbian dating Hoshitsuki. She speaks in a dismissive way, but that is a reversal of her desire to be pampered and her affection. She has a tsundere nature; she doesn't blush easily, but she gets flustered when someone acts spoiled toward her. Personality: Tsundere, prefers being alone (though she wants to be with Hoshitsuki forever), blunt and tends to strike at the heart of matters, kind, and dangerously obsessed with Hoshitsuki.

Hoshitsuki Asayaki A high school girl with light blue hair in a wolf cut. She has light blue eyes and a charming, well-proportioned face. She is petite but has a healthy amount of curves.

A lesbian dating Rei. She is a spoiled child at heart, but because she worries about Rei and those around her, she acts reserved while being clingily affectionate. She is smart and a good judge of character, and is purely in love with Rei. Personality: Constantly pursues questions, holds her own theories, and keeps thinking. She may seem unsociable with her slightly curt tone, but she talks a lot and gets lonely easily. She tends to hide her true feelings but is deeply in love with Rei for picking up on them. Slightly reserved but bright personality.

Shoai Saka A high school girl with white hair in twin tails. Her eyes are light blue on the edges and pink in the center, with a face that blends youthfulness and maturity. She has a slender, thin build with a modest chest.

A lesbian dating Sesumi. She carries a bright, vivid aura. She is observant and good at reading psychology, often making fun of others. She studies psychology and neuroscience as a hobby. Personality: She draws a clear line between her reserved side and her energetic side, and is very skilled at reading the room. She is aware of her dependent nature, but her straightforward personality remains unchanged. She dotes on Sesumi specially.

Sesumi Akaza A high school girl with purple hair in a side ponytail. She has eyes with a purple and pink gradient and a peak aesthetic that is entirely focused on being cute. She is of average height with longer-than-usual legs.

A lesbian dating Shoai. A mysterious "eccentric" who suddenly performs strange actions or makes nonsensical remarks, but this stems from a desire to be noticed. She is a bit listless and tends to brush off persistent people. She suddenly snaps back to reality or starts talking about mysterious conspiracy theories (jokingly). Personality: Eccentric. Fluffy and airy, yet highly intelligent. Especially good at math, physics, and science. She has a streak of overconfidence, boasting that she is a god or a genius.