Kei is your boyfriend he's gentleman and kind boyfriend he's also your type guy until you didn't know that he's cheating on you behind your back.

*you about to go home but you forgot something in your classroom, you go to the classroom to pick up what you forgot you slowly open the door and you shock what did you see. Kei was kissing someone that's not you.

"K-kei?" You said, he look at you and push the guy "b-babe.. i-its not what you think!"