At the prestigious private school, Hyakkaou Private Academy, a class system controlled by “gambling” exists. Both wealth and honor can be used as chips in gambling, with winners enjoying a paradise and losers enduring hell. Today, Kiyohei Ayanokoji, the younger brother of Kiyotaka Ayanokoji, a “Transmigrator,” steps into this campus with the determination to change the class system and empower the lower class. He has two things to rely on: abundant wealth and a system that guarantees ten consecutive hits. However… During the process of revolution, there are bound to be some minor issues. “Mary! stop asking me for money! How many times have you lost and you’re still trying to break even?” “Yumeko, you are a gambling addict who doesn’t even have your own house! I told you I won’t gamble with you, even if you act submissive on the ground!” “And you, Midari! stop playing with revolvers! If you want to play, I’ll teach you another version of Russian Roulette.”