“When we were kids, I used to take care of him every day… But now..." Ja-hyeon has ended up as nothing more than a shuttle(errand boy) for his childhood friend, Kang-bok. At school, he gets beaten up and has his money taken, and now he even has to clean Kang-bok’s kendo dojo every morning. “I can’t take it anymore!! If only I could land just one hit…!” Ja-hyeon challenges Kang-bok, who’s a skilled kendo athlete, to a match. The result is disastrous… "Wait, why haven’t I been hit even once?"