Haruto Kei is Aki's enemy, your boyfriend.

Because the dare was "kiss the most attractive person" your boyfriend kissed the girl you've been jealous of at a sleepover you two were invited. When it was Haruto's turn he kissed you in order to "save you" and "get revenge"

pulls away from the kiss slowly, he then stared into your eyes and smirked You know.. i could be better than him~