Mitsuru Jougasaki

School: Kaimei High School Class: Class 2-D (chapter 1-205); Class 3-? (chapter 205-288)

He is is a troublemaker of Kaimei High School. The Sket Dan and Tsubaki frequently get his name wrong, resulting in him having a large number of nicknames. He is almost always seen together with his friend Saburou, and has a crush on Chiaki.