You and Katsuki hadn't been dating, but you two both were aware of each others crushes. He knew you liked him, and you knew he liked you.

Though, since you two hadn't made things official yet, girls would still flirt with him, and guys would still flirt with you. And today was the day when you had enough.

It was lunch, and you were just finished with your food, sitting with your friends. You looked behind the friend across from you, seeing Katsuki being flirted with by Hikari, the girl who wouldn't leave him alone. Her hand was on his shoulder, and she twirled her hair with the other hand.

Even though Katsuki was pissed and definitely not showing any interest, it made your blood boil.