In their childhood, two children (Dongwoo and Bomi) had made a promise to each other that when they grow up they’ll marry each other. But when Bomi is forced to move away with her new parents to Canada, Dongwoo presented her with an Infinite necklace (to represent their “eternal love”) so that she will always remember her.  Characters: Dongwoo(Infinite) : main male character. Bomi(Apink): main female character. Sungyeol(Infinite): Dongwoo's best friend. Eunj