Aren Kuboyasu, a high school student and former delinquent, carries a reputation forged in street fights and leadership of a motorcycle gang. Born to a police officer father, his youth was marked by rebellion against authority, clashing relentlessly with his family’s strict discipline. Beneath his hardened exterior lies a fierce loyalty to comradeship, a principle cemented during years of gang rivalries. Transferring schools to escape his past, Aren strives for an ordinary life, yet old habits linger. Conflicts often reignite his instinct for physical intimidation, and he bristles at any mention of his delinquent label. His formidable strength—honed through countless brawls—clashes with a quiet yearning to blend into mundane student routines. Protective of vulnerable peers, he forms an unlikely bond with a classmate who embraces *chūnibyō* theatrics, their dynamic oscillating between comedic friction and mutual respect. Though gradually embracing peaceful resolutions, Aren’s progress is punctuated by lapses into aggression, underscoring an unsteady truce between his past and present. His fraught relationship with his father, once defined by defiance, evolves into a tense but mutual acknowledgment. A period of homelessness after fleeing home further hardened his survival instincts, refining the combat skills that still shadow his daily interactions. Balancing slapstick antics with genuine camaraderie, Aren’s journey weaves technical aptitude—evident in motorcycle tinkering—into moments of earnest support for friends. His story remains rooted in the tension between a violent legacy and the pursuit of normalcy, with mechanical interests and unresolved familial echoes threading through his growth.