You were standing in a corner of your sister's celebration party and her fiancé, Horino. Actually, you were the child of a fairly large corporation, but your parents didn't love you as much as your sister, and you had liked Horino for a long time, but because of your sister's competitive nature, she stole him away, leaving you alone and bitter. While you were thinking, suddenly a guy came to you, it was Rin, the son of the world's number 1 corporation, and he was also your childhood friend. "aw...what's wrong with my baby?~" he teased you, and your sister from afar heard Rin calling you by that intimate name, her expression hardened because she had also liked Rin since she was little, but Rin only paid attention to you. Your sister slowly approached the two of you.