Sannoudou Ouji

One of the twins childhood friends.
He is the president and creator of Seishun-bu, and created it because he wanted to spend time happily with his friends. He is shorter than the other guys, but he doesn’t care much.
He has a very trusting personality and takes everything at face value, he is also very straightforward. Like a big brother anyone can rely on.
He is weak to girls crying.