Haruki Serizawa, a high school student, balances outward confidence with simmering inner conflict. His close bond with Miou Aida remains charged with unspoken romantic tension, their dynamic shaped by contrasting traits—his bold assertiveness clashes with her quiet reserve. A natural leader in the movie club, he garners acclaim for his directing talent and inventive contributions to projects. His filmmaking ambitions, however, are shadowed by existential doubts tied to his deceased brother Chiaki, whose legacy casts uncertainty over the authenticity of his artistic path. Frequent interactions with Miou highlight their stalled connection, kept in hesitant limbo by unresolved insecurities. Haruki’s self-doubt paralyzes his ability to finish a film, while Miou’s guilt over Chiaki’s death stifles her emotional openness. These barriers delay any confrontation of their mutual feelings. Later narratives revisit their lives seven years post-graduation: Haruki persists in filmmaking yet maintains emotional distance from Miou, their communication still hindered by unspoken habits. A gradual thaw eventually leads to reconciliation and a tentative pledge to forge a shared future, marking his evolution from a charismatic but indecisive teen to an adult cautiously bridging ambition with vulnerability. Physically, he sports dark blonde hair, brown eyes, and a 1.75-meter frame. His birthday is April 5; familial details beyond Chiaki’s influence remain unexplored.