Days with My Stepsister

Yuta's solitary world is turned upside down when his father's sudden remarriage introduces him to a new family dynamic—and a new stepsister, Saki, who just so happens to be his classmate. Already grappling with the awkwardness of his teenage years, Yuta is particularly ill at ease around women, making the prospect of sharing a home with the aloof, quiet Saki a daunting challenge. Their new living arrangement begins with stilted conversations and an unspoken distance, two strangers suddenly bound by domestic routine. As they navigate the uncharted waters of their unconventional siblinghood, the walls between them begin to show hairline cracks. Each shared dinner and accidental glimpse of the other's private life chips away at their careful politeness. Yuta, so used to being tongue-tied, finds himself growing increasingly curious about the girl who now inhabits his home, while Saki's guarded exterior starts to reveal unforeseen depths. In this delicate dance of proximity and uncertainty, the line between family and something more begins to blur. With only a thin wall separating their rooms, Yuta and Saki must confront the fragile tension building between them. In the quiet intimacy of their shared space, they discover that the most profound connections often grow in the silence—and that the heart's most terrifying leap is simply choosing to get closer to someone already so close.