Jiro Ogasawara is a high school student with a striking look: black hair featuring blue streaks at the front and a pierced left ear adorned with an ear cuff gifted by his girlfriend, contributing to an initial rough impression. He typically wears his school uniform without a tie and stands around 182-184 cm tall. His personality blends a superficially tough exterior with underlying sensitivity and earnestness. Though direct and sometimes harsh in speech, he reveals vulnerability, especially when seeking emotional support from friends during arguments with his girlfriend. He is unwaveringly devoted to those he cares about, openly expressing commitment to his long-term relationship and valuing genuine connections. Ogasawara has dated Yokota Eimi since junior high. Their dynamic involves frequent quarrels tempered by deep mutual affection. He is troubled by Yokota's interest in boys' love media, particularly her preference for "bad boy ukes," leading him to question if she views him through that lens. Despite his discomfort with BL, he attempts to understand her interests by secretly exploring her collection. Both families support their relationship; they spend significant time together, with Yokota later tutoring him. She attends a nearby school and meets him after his classes. Among peers, Sasaki Shuumei is a close friend and classmate; they share a passion for music, often exchanging CDs, visiting each other's homes, and participating in family activities. Ogasawara voices suspicions about Sasaki's growing closeness to Miyano Yoshikazu, theorizing Miyano might be gay and questioning their relationship. He also turns to classmate Hirano Taiga for support during relationship troubles, bonding over both being perceived through BL perspectives. Hirano tutors him academically, though Ogasawara finds his intensity challenging. Initially wary of Miyano due to Miyano's open BL interest, Ogasawara later realizes Miyano's knowledge could help him understand Yokota's hobbies, leading to tentative camaraderie. He views his juniors, including Miyano, Kuresawa Tasuku, and Tashiro Gonsaburō, positively. He bonds with Kuresawa over girlfriend discussions and appreciates the juniors' respect. Ogasawara participates in Sora's team, a group mentoring young heroes. Within this role, he trains physically to protect his juniors and friends, focusing on self-defense techniques using his hands and feet. Additional background notes include his birthday on April 15, blood type A, and associations with his older brother's punk-oriented social circle.