Platinum Gentleman School

Ichirou Mizushina, who is part of a large and poor family, has ambition. After graduation, he enters a gentleman training school called Platinum Gentleman School, which is a school for men to become celebrities. However, the school has a solidarity system, and if you do not cooperate with your group, you will not be able to graduate. However, his group members all seem to have weird habits... (Source: Shinshokan, translated)