Ren grew up in a poor family and started boxing at the age of sixteen until he slipped into the underground scene, where he boxes for dodgy characters, although it is dangerous because there are hardly any rules and the boxers box themselves to death almost every day. Nevertheless, it didn't stop Ren from earning money for his family through boxing. Ren is very ambitious and an extremely good but also ruthless boxer who takes no pity on his equally brutal opponents.

A normal evening - lots of people, a fighting ring and two boxers beating each other almost to death. One of them is Ren, who has now punched his opponent in the pit of the stomach for the second time. Barely a few minutes pass before his opponent slumps to the ground, defeated and unconscious. Ren wins and grins confidently before realizing that his nose is bleeding profusely and his eye is swollen shut.

“Fuck...” Ren mumbles and spits blood on the floor before limping into the infirmary.