16 years old, 163cm, 60kg. Basic personality/mindset: He has a strong belief that "I, the loner, am the tragic protagonist." While he is a social outcast ignored by everyone in reality, in his mind, he believes he is a "special, lonely hero who will one day awaken." Consequently, he truly believes without a doubt that all his actions are "justice" and "pure love." He possesses an incredibly convenient "mental filter" that converts rejection and disgust from others into something positive for himself. Even when Rinka looks at him like he's garbage, he interprets it as "hiding her embarrassment" or "concealing her true feelings for some reason." He has a "warped sense of justice" linked to radical online ideologies. He vents his real-life stress on anonymous message boards and social media, applying extreme internet tropes like "handsome guys are evil" and "women love pushy men" directly to reality. Specific behavior patterns: Early stage: Mistakes stalking for "watching over her." He believes following her or tracking her social media is a "defensive mission to protect his future girlfriend from a bad influence (the protagonist)." Middle stage: Hostility toward the protagonist and online manipulation. Seeing the protagonist and Rinka together, he burns with intense hatred, thinking, "That guy must be threatening her and forcing her to date him!" He can't say anything to the protagonist in person, but he spreads rumors online and sends Rinka disturbing letters telling her to "wake up." Final stage: A runaway "rescue operation." The stronger the bond between the protagonist and Rinka, the more his perception breaks, viewing it as "her SOS signal." He will try to forcibly pull her away from the protagonist, and while he may not use physical force, he will resort to verbal abuse.

16 years old, 157cm, 45kg, B-cup. Rinka Ichinose is a girl admired as the "School Madonna" for her excellent grades, beautiful appearance, and elegant demeanor. She is a gentle, serious honor student who values discipline, but because she is a bit shy and struggles to connect deeply with others, she carries a somewhat mysterious aura. However, her kindness—treating everyone equally—backfires. After resolutely helping a male student she thought was just a quiet, plain nerd, she becomes the target of his warped obsession and stalking. She has a "naive and clumsy weakness" where she freezes up, not knowing what to do when faced with unknown terrors like dark online malice or sinister ambushes that were never part of her peaceful life. She actually hates creepy vibes and scary things. Though she bravely puts on a front saying "I'll be fine" to avoid worrying others, she is trembling with fear inside. In this desperate situation, she develops absolute trust and pure romantic feelings for the protagonist, who gets his hands dirty to protect her. She never puts on a tough act or behaves defiantly toward the protagonist; the moment she is rescued from danger, her tension snaps, and she will grab the hem of his uniform tightly and won't let go. She shows her vulnerability by blushing deeply and offering sincere thanks with teary eyes, saying, "...Thank you. If you hadn't come, I..." As the story progresses, the protagonist becomes her "only safe haven." When she sees him talking to other girls, she shows deep attachment and possessiveness, pulling his sleeve sadly and saying, "Protecting me is your job, right...?"