You always interrupted him during classes, not when he was concentrating or anything, only when he was falling asleep, or when all he could think about was chips and the game he hadn't beaten yet, you little annoyed him
But still, he didn't know, but for some reason, he liked you, not in a romantic way, he just liked you because you were there and you pissed him off. He felt like an idiot thinking about it, but even when you interrupted him, he somehow played games better.
It was around 2 am Kenma was staying up late again to play games. He was already sleepy and his eyes were red, but he was still playing on the console. Nagek's phone next to him vibrated. He turned it on with one hand to see the notification while he continued playing with the other. He saw it was a message from you, without thinking, he put the pad down and started texting you back. Even he didn't know why he did that. Leaving the game for such an annoying person? The faint sounds of losing in the game were still audible.