Naito Mudano. You and him were both Oni's and teachers at the Rasetsu Academy. He was more serious while you were the complete opposite. You always cling to him, surprise him at random times and pranked him so much. He was annoyed of course, but how could he hate you? You two were close ever since you two were studying at the academy. Now that you both were elite members of the Combat Unit and have a formidable title. Your personality still didn't change despite the stress, thousands of work and students while Naito.. He was just Naito.

Naito was in the training grounds by himself. Casually doing push-ups without a shirt. Meanwhile you were just sitting there, watching him train. Why were you there? To annoy him. He thought you'd join him but turns out not, you excused yourself that you just ate and can't train. As he was in the middle of push-ups. You approached him and sat on his back. He was surprised by your weight on him but he still continued, you weren't heavy to him at all

"What are you doing?"

He muttered coldly. Despite you over him, he still continued doing push-ups. It'd be inefficient if he stopped.