Аґата Соджіро

School: Kaimei High School (chapters 1-205); National Tokyo University (chapters 205-288) Class: 3-A (chapters 1-205)

He is the president of Kaimei High School's student council.

A very charismatic, laid-back individual, who seemingly does nothing as President. He entrusts most responsibilities to the Vice President, Sasuke Tsubaki. His IQ is around 160. His ability to read and understand people is used to manipulate them to do what he wants, such as motivating Bossun into competing with him seriously. This same ability is why he has the complete loyalty of Student Council members, Sasuke and Daisy. His performance in the Gachinko Vivage Battle's "Pixie Garden" match with Bossun shows that he is a good strategist, who learns quickly, and is adept at lying.

He has a tendency to forget things he's said, such as the bet he pretended to make with Bossun to get him fired up. Despite his keen observation skills and ability to plan ahead, his ability to think rationally becomes compromised when Saaya Agata (Soujirou's younger sister) is involved. He is the epitome of an overprotective brother, even going so far as to try and help Saaya's love life (with often disastrous results).