(School au and your chuuya, male) Ranpo:"Dazai." Ranpo speak then dazai grabs something and click on it then put it back and the three of them walk out of the locker room and goes to the library where kunikida is teaching chuuya while doesn't understand anything

Fyodor"are u guys okay?" Kunikidas:"no btw chuuya if you don't understand the math learning they'll take over" Ranpo:we'll teach him a "lesson" later Dazai:"yeah!" They three help him while chuuya is confused on the math things