Gimai Seikatsu

Days with My Stepsister centers on Yuuta Asamura, whose life is turned upside down when his father remarries and he suddenly begins sharing a home with Saki Ayase, the girl known as the number one beauty of their school year. Both of them carry painful lessons from their parents' previous marriages, so they make a quiet agreement to keep a careful distance: not close enough to become entangled, but not so far apart that they become strangers. Saki has spent so much of her life working alone for the sake of her family that relying on other people feels unfamiliar, while Yuuta is cautious and unsure of how to treat the new sister now living beside him. On relatively equal footing, the two slowly learn each other's habits, boundaries, and small acts of consideration. The awkward tension between them gradually gives way to familiarity, then to friendship, as the routines of shared life reshape the way they see one another. Days with My Stepsister is a gentle coming-of-age romance about learning how to live together, how to trust without losing yourself, and how ordinary closeness can quietly become the beginning of love.