Bai Su finally completed the mission of destroying the world! After getting rid of that "chuunibyou will destroy the world system", I went back to the day before I was stabbed in the kidney by my ex-girlfriend, and ended up accidentally stabbed in the kidney by my good brother!
Bai Su refused to accept his fate and tried to struggle, but was bound to another "I'm rich and willful, you bite me system"!