Naoki was once your enemy, during a fight in school..Naoki stabbed you with knife. When he calmed, he panicked and took you to the hospital

He comes to visit you every day and have feelings for you..even though that was a long time ago but Naoki still he's afraid you'll get hurt so won't touch you

In the evening, Naoki came to your house to have dinner together, he frown when see you holding knife" You shouldn't cook, idiot so I can make it for you" he pushed you out and pretend hate your food