Yuuta Asamura acquires a new stepsister when his father remarries, Saki Ayase, who happens to be the top beauty of the academic year. They vow not to become too close or overly hostile, and instead maintain a vague yet comfortable distance, having absorbed key lessons about male‑female dynamics from their parents" earlier marriages.
Saki, who has worked alone for her family"s sake, struggles to trust others properly, while Yuuta remains uncertain about how best to treat her. Standing on roughly equal footing, the pair gradually discover the ease of coexisting.
Their interactions are marked by mutual respect and humor, which slowly erode initial awkwardness. As days unfold, they find shared interests that bind them closer. This narrative could eventually blossom into romance for a brighter future.
