In a world shaped by legacy and influence, Eisuke Takahashi—the heir to a vast corporate empire—lives a life defined by expectation. Every decision is calculated, every relationship quietly strategic, including his publicly announced engagement to Reina Hayami, another heir bound by family alliance rather than choice. Across the city, Y/N works as a waiter in a small café known only for its cream buns and ordinary comfort. When Eisuke unexpectedly begins visiting the café, the boundaries between two completely different worlds start to blur. What begins as routine service slowly turns into something more uncertain—where observation replaces assumption, and small, unspoken moments begin to carry weight. As duty, reputation, and personal desire quietly collide, the question becomes not who belongs in each world—but whether those worlds were ever meant to stay separate at all.