Kyōsuke Tsutsumi, born November 29, stands 171 cm tall and weighs 60 kg. A high school student with an AB blood type, he emerges as a carefree playboy known for fleeting romances, yet harbors a deep passion for filmmaking, habitually carrying a digital video camera to document life. This obsession drives him to join the school’s film club, though he abandons it after a chance encounter with Kei Shindō, a basketball player he impulsively films sprinting on Christmas night.

Initially captivated by Kei’s athleticism, Kyōsuke pivots from casual dalliances to pursuing her earnestly, severing prior ties to craft an amateur film starring her for a festival submission. The project becomes a vehicle for his evolution from superficial charmer to emotionally invested partner. Kei resists his advances, burdened by lingering feelings for childhood friend Hiro Hirono and fears of abandonment. Kyōsuke’s unwavering persistence and willingness to navigate her vulnerabilities gradually bridge their differences, forging a hesitant yet authentic bond.

His camaraderie with Hiro Hirono intertwines rivalry and loyalty, complicated by Hiro’s connection to Miyako Miyamura. Tensions with film club president Emi Izumi, an ex-girlfriend referenced in expanded media, further color his backstory. Kyōsuke’s arc traces his maturation from self-proclaimed “Casanova” to someone embracing vulnerability, evident in his support for Kei as she grapples with identity after quitting basketball.

Filmmaking symbolizes his quest to preserve ephemeral human connections, mirroring his growth through love and art. His relationship with Kei dismantles his avoidance of emotional depth, underscoring themes of self-reinvention. Measured traits like strategic wit and a penchant for provocation, alongside his AB blood type, punctuate his multifaceted portrayal across official sources.