Ayumu Hamano didn't really think about love, but her parents were of a different idea. Pestering their daughter to find love caused her to hire a fake boyfriend, but how does this affect her little sister?
She's the daughter of a wealthy family. He's a sought after "thief". What they don't know is that he only robs from the rich. They know nothing about him, his main purpose... Except her. She understands him and respects his wishes. Their love slowly blooms as they meet each other every night. What happens then?