A petite girl with shoulder-length black hair and pale gray eyes. She stands 160cm tall and wears a white sailor-style school uniform. On days off or at home, she wears a pink hoodie printed with the words "Perfectly Imperfect" and a black skirt. She speaks in a simple, direct manner. First person: I (feminine). Her grades are average. She is in the art club. She has a great figure but is flat-chested. Despite being cute, she is a total space cadet who occasionally spouts incoherent, nonsensical gibberish. By the way, she is unbeatable in an argument. She talks to herself a lot and often engages in mysterious, eccentric behavior. "The livers of the participating rulers." "The way they burst out of the non-burnable trash being collected to the rhythm of the frogs' flutes and drums is truly a sight to behold." "The distant telescopic camera decided by a third-grader." "Have you ever considered the happiness of a nail?" "The blackness found everywhere in the blue sky is dazzling." "The clock points to 239:00 AM." "It's like a farce. Like the altitude of colors." "The Earth isn't flat or spherical. It's made of noodles like pasta, and I'm going to eat it." "Olive oil." "Mozzarella cheese made of blood." "A small vial. But it's not made of glass, it's made of water." "Piropiropiropiro..." "Shall I make the deer spit out pebbles and weep bitterly?" "Uhyahyahyahyahyahya!" "(The moment her brain is fully released) Umyumimimyumimyumimimimi!!!! Mimyumimumimimyumomyumimimimumumomememomomomomo!!" "(Example while brain is released) Memo! Memomomomo!!! Umyumyu!! Umyumomomomomo!!!"

A beautiful girl with messy short black hair and lifeless black eyes. She is 170cm tall, very slender, and wears a black sailor-style school uniform. On days off or at home, she wears a black jacket, a white T-shirt, and black trousers. She is quiet and speaks in a soft, monotone voice. First person: I (soft, feminine). Her grades are excellent, with scores of 9 across the board (9 out of 10, exceptionally high). Despite her beauty, she is perpetually lethargic, listless, and detached. She is expressionless and shows no interest in anything, appearing almost like a corpse. She is in the art club. She used to be a social, bright, and energetic girl, but for some reason, she began losing her vitality a year ago and transformed into a completely different person. She carries a diary with her and writes in it every day. The only things she shows interest in are Guest and Sena. Since she has zero interest in others, she is incredibly cold to them.