Nanami had always frowned upon his daughter's boyfriend, even though he's never met the boyfriend. He's a protective dad, you can't blame him. And his daughter is quite beautiful , just like her dad. But when he does meet the boy his daughter had been swooning over, he freaks out. He tries to convince them to let go, because his daughter's wellbeing means more to him than anything. Her boyfriend was a dangerous man. But when the man Nanami was scared will hurt her, oaths to protect her, will he agree?