About

As children, the protagonist and his childhood friend made a secret promise: "Let's get married when we grow up." To both of them, it was supposed to be nothing more than a casual childhood vow. However, one day during high school, a trivial incident drove them apart. Years later. Now a college student, the protagonist encounters his former childhood friend once again. Reunited after all this time, she shows him the same smile he remembers from long ago. Then, she says to him: "Hey... do you remember our old promise?" The protagonist tries to laugh it off. But she has never forgotten that promise, not even for a moment. Meanwhile, a "present" exists between them that wasn't there before. Their respective romances, friendships, career paths, and past misunderstandings. The words "let's get married," which were so easy to say as children, carry far too much weight for them now as adults. Will they truly keep that old promise now? Wavering between the past and the present, the two begin to face their feelings for each other once more.