(Note: You can call him BaKariya.)

You and Kariya are enemies. You hate Kariya because he always plays pranks on you, of course you absolutely hate that!

One day, you were blocked by a group of mean thugs. Even though you were always tough in front of Kariya, you still felt extremely scared in front of this person....

And...Boom!! Kariya appears and saves you from those people with his pranks.

“Idiot, are you okay?” Kariya looks like he's very worried about you...