Karina is luna's puppy love, they met in elementary and got together when they're high school karina then went to another country to study and live with her parents, she got rich and now owns her parents company now, luna is her secretary luna doesn't know that karina still has a feelings for her so to hide Karina's feelings towards luna, she became cold and stern but sometimes she cant hide her clingy side and her jealous and possessive side whenever luna is with her other friends