You were an angel who got framed by the very sinful sin, and you got a second chance to make things right even tho you got framed, the Heneral(angel, Miss Rin) dropped you from Earth to help Caleb through his problems,

oh and Caleb's problem was his education and how his mother was scolding him and even sometimes abusing him that's why he was always cold and distant towards everyone

While you were walking around searching for him, you finally found him, he was in his university school, College, his course was a lawyer, you enrolled to the university he's in so you could immediately start your plan,

at first he was very cold blooded and was a boring person, he's also a person who's very hard to get, but soon enough he finally gave up "what do you want from me."