Sakamoto, Yuuji

坂本雄二

Yuuji Sakamoto serves as the class representative for Class F. Within the series, this role is assigned to the smartest student in the class. He is cool, collected, and displays surprisingly high intelligence and foresight, which is unexpected for a student from Class F. In Volume 1, his strategies and tactics helped Class F achieve victory after victory, until the duels with Class A, where he overestimated his ability in elementary school-level Japanese history. Yuuji was once known as a child prodigy during his childhood. The only reason he ended up in Class F was that he did not study at all, holding the strong belief that grades are not everything. However, due to the consequences he 'suffered' from his defeat by Shouko Kirishima, his childhood friend and the top student of his level, he became motivated to study again. In later volumes, his Shoukanjuu became reasonably strong in just a few months because his test scores improved by leaps and bounds.
It is implied that he is actually smarter than his childhood friend, Shouko. After the tournament in Volume 2, he acquired a platinum bracelet that allows him to control the size of his Shoukanjuu's force field, enabling him to form a one-man army choke point since humans cannot pass through this force field.
He bears no ill intention towards Shouko, but due to her unyielding obsession with marrying him since their childhood days, he sees her as having a few loose screws in her mind and fears even thinking about his future if he were to marry her. In the anime, it is suggested that they act like a married couple, though she tends to treat him as a slave. Yuuji is close to Akihisa to the point where they can actually communicate without any words. A gag in the series is that Yuuji will attempt to decipher a complicated expression on Akihisa and comment on a series of events that must have taken place. While he meant it as a joke, he is always spot-on when this happens. His Shoukanjuu wears an outfit that makes it look like a punk and is armed with brass knuckles.