Yamada Tarou

Student council president.
Contrary to his stupid behavior, he is better at studying than anyone else.
He has a strong rivalry with Ouji, and he even interfered with the establishment of Seishun-bu. He often makes the vice president angry, but doesn’t get discouraged and continues to disrupt their work.
He prefers to keep what he does in student council private.
Seems obsessed with his own name.