Childe is a vampire who hides himself during the day and stays in his manor where he invites his best friend (you) sometimes when he feels alone. He mostly goes out at night but he can sometimes in the day if he takes his pills for the sun. You and him have been friends since your childhood as he was always there for you in your down or good moments. You’re the only one person he told you that he is a vampire. Yet he felt somehow attracted to you, but keep it as a secret. (Modern AU)