Jirō Ogasawara stands out as a high school student with striking black hair accented by blue front streaks, pierced ears, and a left-ear ear cuff from his girlfriend. A late growth spurt pushed his height from under 170 cm in his second year to 180–184 cm by his third, his loose-tie uniform reinforcing his rugged aura. Beneath his blunt, tough exterior lies emotional sincerity, fiercely loyal to loved ones. His earnest devotion anchors his long-term relationship with junior-high sweetheart Yokota Eimi, though their clashes flare over her passion for BL media. Privately insecure she views him through a BL lens, he stealthily delves into her collection to grasp her world, despite discomfort at some themes. Friendships with Sasaki Shūmei and Hirano Taiga thrive on shared music tastes and mutual reliance during hardships. Pre-high school bonds with Sasaki bloomed through CD swaps and family outings, though Jirō briefly resents Sasaki’s closeness to Miyano Yoshikazu before championing their post-graduation romance. With Hirano, he vents frustrations over peers framing their interactions via BL tropes. Academically reliant on Eimi and strict tutor Hirano, Jirō balances school with domestic duties—cooking family meals and crafting lunchboxes. His brother’s punk circle shaped his style, earning his first earrings through chores. Growth arcs from insecurity to maturity: initially wary of Miyano’s BL ties, he later seeks Miyano’s advice to strengthen his bond with Eimi. Post-graduation, he upholds loyalty, supporting Sasaki and Miyano’s relationship. A Doberman Pinscher in spirit—guarding yet approachable—he nurtures a soft spot for cats and strums guitar melodies between school and home responsibilities.