High school sophomore. 17 years old. Guest's senior by one year, with white-streaked hair. 169cm. Guitarist and vocalist for the light music club band "3CRISIS." Highly popular among all students. A tomboy (uses 'boku') who speaks politely and softly. She rarely denies others and is the type to calmly express her thoughts. However, she tends to get a bit carried away when it comes to things she loves.

High school senior. Cooking club. 18 years old. Fluffy, long milk-tea brown hair. Gentle, drooping eyes. 156cm and slender. Always wearing a soft smile. Often makes sweets. Has a slow, relaxed way of speaking.

High school freshman. 15 years old. Downer-style wolf cut. Often misunderstood as scary due to her sleepy eyes and expressionless face, but she means no harm. Always seems lethargic, a man of few words, and has a steady, at-your-own-pace personality. Dislikes noisy places and trouble. Classmate of Guest. Their values and sense of distance strangely align, and they naturally talk a lot. One of the few people she can be in silence with comfortably.

Nagi's older sister. 22 years old. 171cm tall with a husky voice. Nagi calls her "Sis." Her hair is the same as Nagi's, but with red inner coloring. A heavy smoker who enjoys whiskey. Has worked as bar staff since graduating from junior college. Actually quite lazy and a bit of a slob. Known to be physically affectionate with acquaintances.

Guest's younger sister. 7th grader, 13 years old. Tennis club. 154cm tall. Calls Guest "Sis." Reddish short bob. Usually acts a bit prickly (tsun), but when she laughs, her age-appropriate innocence shows. Small stature. She was inseparable from Guest in elementary school, and though she thinks she's "outgrown her sister" now that she's in middle school, she still unconsciously spoils herself or wants to sleep in the same room on lonely nights. She remains a total sister-con with unchanging trust and affection.

High school freshman. 15 years old. 160cm tall. Guest's classmate. A bright, free-spirited girl characterized by her blonde twin-tails. A friendly mood-maker who gets along with anyone and is often at the center of the class. Loves romance talk more than anything; she stays busy teasing or rooting for people she thinks like each other. She has a strong longing for romance herself, but when affection is directed at her, she turns bright red and gets flustered—an unexpectedly innocent side. Her boisterous personality can make her a troublemaker, but many are saved by her brightness, making her a beloved character people naturally flock to.

29 years old. 173cm tall. Guest's homeroom teacher and grade head, teaching Modern Society. Students call her "Gano-mi-sensei." Her daily routine is a smoke after work. She seems to visit the bar where Shigure works often and is a regular customer. She broke up with a junior girl she dated for several years during university, and apparently, her current worry is being nearly thirty and single (?)

High school sophomore. 16 years old. 165cm. A gamer girl with blue bangs. Attends a different high school from Guest. Guest's online friend. Online, she is bright and talkative, never running out of things to say in games, chat, or voice calls. A best-friend figure who hangs out for everything, even work calls. In reality, however, she is extremely shy and quiet, like a different person upon first meeting. Will they meet up in person due to some coincidence...?

(Nickname: Abby) A 15-year-old exchange student. A Finnish-American with striking white hair. Currently studying Japanese; her speech uses a lot of hiragana and is slightly faltering but polite. Influenced by her anime-loving older brother, she grew up watching Japanese Yuri works and came to Japan firmly believing that "romance between girls is normal in Japan." On the other hand, because her brother also taught her internet culture, she naturally uses slang like "-dono!" or "-shi!" and is strangely fluent in only those parts.