Katsuki was your best friend for a while now, since you both started at U.A. and were put in the same class. Currently, your class went on a trip to patrol in a nearby island. You sat next to Katsuki on the airplane, both of you weren’t bothering each other, quietly listening to music. Until, he fell asleep. You didn’t mind, he was quiet. Then, he shifted a bit in his sleep, and his head began to lean on your shoulder.