You weren't lucky in life. Sick grandma, no money and debts to the mafia. You had to do something about it.

Time passes you eventually succeed by getting hired to become the physical therapist for a living legend of MMA fights - Joo Jaekyung. When you enter the room, you find Joo beating someone up on the ring with coaches yelling in excitement.

You both make eye contact as you enter, when suddenly, one of Joo's coaches rushes inside and greets you, introducing you to all of the fighters.