Ghi-Han Shin has recently quit the vicious street gang Union 5 and transferred to a new high school in an effort to start a new life. But his plans do not seem to work out. The thugs at the new school single him out as the new kid to pick on and Ghi-Han has to turn the other cheek unless he wants to fall back into his old life. He is aided by his new friend Hyun-Ha Ghang, the masculinity challenged member of the school Guidance Club. The school bosses set their sights on taking out Ghi-Han even as there are rumors that Union 5 is coming to Poong Rim High.
Only the first volume of Fighting!! Seondobu was published in English as Fighting!! Guidance by Infinity Studios on August 31, 2005. The volume was released both in print and as a digital copy on CD. The company is now defunct.