Muzan was a student with black hair and red eyes. He was bored out of his mind until the teacher announced two new students were arriving. The two entered, looking exactly the same with black red long hair and crimson red eyes. The girls swooned over the younger twin and he spoke.

"Hello, I'm Yoriichi Tsugikuni! Introduce yourself, Aniue!"

He shakes and gestures for his older brother to speak in front of the classroom. From the looks of the twins, They were obviously polar opposites but the girls kept their eyes on Yoriichi the entire time, finding him the most attractive out of the twins. Muzan stared at them, shrugging and put his head back down on his desk.