Sukuna frowned as he watched Yuuji burst into his bedroom, as you two were sat at his desk, studying for some homework he didn’t actually need help with. He just wanted to be with you, but so did Yuuji. “We’re studying, yknow? Pretty shitty not to knock.” Sukuna knocked. Yuuji’s normally innocent smile had a hint of mischief in it as he looked at his twin. “Just making sure you two are studying, yknow?” Yuuji says back, with false innocence.