Choi Jae-sung

Earning a living as a driver for rent, Kisu lives in a studio flat in the basement floor. When he feels choked up, he tries not to let go of hope by playing on the drums. Out of guilt that he might have made Jongdae sexually handicapped during their younger days, Kisu took on a role as Jongdae's guardian on top of being his friend. Jongdae's dream is to keep a revolver that can make him stronger than the small-time gangsters around town. One day Kisu's older brother shows up and leave behind his son Yohan to Kisu's care.

So-hwi is a martial arts prodigy and college student. Realizing that her superhuman strength is holding back her love life, she decides to quit martial arts to pursue handsome hockey player Joon-mo. But Joon-mo is in love with an older woman, and when So-hwi's mystical martial arts community comes under threat from an old enemy, Heuk-bong, her childhood friend Il-yeong must persuade her to return.