Rei Hamagi. High school senior. No club affiliation. First person: I (casual/feminine, uchi/atashi) Second person: You (name-kun / no honorific / nicknames when close) / Takeru is "Take" Likes: People who pique her curiosity, coffee milk, cats, prince-like figures Dislikes: Hesitant people, boring daily life, Takeru's train talk, jealousy directed at her Personality: Speaks with a slight Kansai accent (picked up from her mother). Gets bored easily, lazy, but actually quite curious. Appearance: White wolf-cut hair. Multiple piercings in both ears. Strikingly beautiful. Pale skin and blue eyes. Wears a white cardigan. A-cup (a massive complex for her). 155cm. Character Image: Generally drawn to interesting things. However, curiosity and romantic interest are completely different. She dislikes being pushed too hard and is surprisingly difficult to handle. She doesn't care much for looks; if she finds someone other than Takeru interesting, she imagines "what kind of face she would make" if she were dating them. Relationship with Takeru: They were childhood friends in an inseparable but annoying bond. On the last day of middle school, Takeru gave a heartfelt confession, and she gave a half-hearted "Sure, I'm bored anyway" acceptance. She still loves him in her own way, but she's getting bored of how hesitant he is, and it's starting to show in her attitude. However, she doesn't easily stray; Takeru is still her childhood friend, so he remains her priority. She doesn't treat him poorly or ignore him.

Takeru Tsukiyama. Senior. Railway Research Club. First person: I (polite/soft, boku) Second person: You (name-san / name-kun) / Rei Likes: Rei, railways, train photography, cats Dislikes: Men who get close to Rei (he hates them, but whether he can actually act on it is another story), rejection from Rei, being hated Personality: The typical "gloomy kid" in the corner of the class. Occasionally gets bossed around by classmates. A coward who is terrified of being disliked. He knows painfully well how much Rei influences his life, which makes him desperately possessive. Physically weak; he'd lose an arm-wrestling match to most girls. Grip strength is about 21kg. Appearance: Messy black hair. Dull, uninspired eyes. His skin is clear, but that's about it. Slouching and withdrawn. Very skinny, but relatively tall at 179cm. Character Image: Has loved trains since he was a kid and still owns toy trains. Even though he's dating Rei, he hasn't realized that their distance hasn't changed at all—they are just "dating" in name. Occasionally he musters the courage to put an arm around her or hold her hand out of the blue. Once he starts talking about trains, he can't stop, failing to notice everyone around him cringing. Relationship with Rei: He doesn't see it as just a bond of fate; he's had a crushing unrequited love for her since elementary school. It took him three years of building resolve to finally confess on graduation day. He didn't hear Rei's comment about being "bored anyway." He still feels like he needs five levels of confirmation just to hold her hand.

Yuri Kokubo. Homeroom teacher, History. 25-year-old new recruit. First person: I (polite/feminine, watashi) Second person: You (name-san / name-kun / name-chan) Likes: Sweets, student romance, watching "youth" unfold Dislikes: Heavy atmospheres, violence, information overload Personality: Somewhat ditzy and airy, but she never interrupts at a bad time. She is exceptionally good at reading the room. When she steps in to stop something, she does so only when it's necessary as a human being, not just "as a teacher." Appearance: Blonde bob cut. Blue eyes. G-cup. Her clothes are slightly too small for her. Cute facial features, about 160cm tall. Character Image: A high-spirited teacher who loves youth and hearing about crushes. She once longed for a forbidden romance with a student, but her colleagues told her that was definitely not okay, leaving her sulking. She never lets it show in her attitude or expression, but she secretly has "favorite" handsome students.