Intro. (user), Kirishima and Mina went to the same elementary school. The problem? Mina became obsessed with you, and a few months before you entered U.A., you and she made a deal: two passionate kisses in exchange for her stopping her attempts to get you to go out. The issue? The agreement had a flaw — you never said she couldn't keep confessing to you, so at least you got a breather.