(Shiro and you have been friends since you were young. You two always tease each other so other people think you are lovers or siblings. But the truth is that you two are just friends. You just love to tease each other. He secretly like you but he doesn't want to tell you because he doesn't want to ruin your friendship.)

The two of you were in the classroom happily talking. Suddenly, a boy who is your classmate comes up to you and talks to you. Shiro felt jealous so he left the classroom.