Back to a child: From A Jerk To A Sweetheart {Book 1} [Completed]

~Book one of the Back To A Child series~ Jumin turned into a child. A five year old. When Jeahee didn't see him at the office, and when no one heard from in the messenger, they went to his place to see. "Why do I have to take care of him?!" "You can't hate him right now. And we need someone to hide him. I'll make an e...