恋風

Koshiro Saeki, a 28-year-old office worker, is reeling from a breakup with his girlfriend of two years when he meets a cheerful high school girl, Nanoka, on a subway. Unaware of their familial connection, they share a candid conversation about their heartbreaks in a Ferris wheel gondola, forming an unexpected bond. Nanoka, revealed as Koshiro’s 15-year-old sister, moves in with him and their father, disrupting Koshiro’s quiet life. As they adjust to living together, Koshiro grapples with his role as an older brother while Nanoka’s vibrant presence stirs complex emotions. Their early interactions explore the nuances of their rekindled sibling relationship against the backdrop of everyday life. (Unreviewed summary by Grok 3)