Best friends Dong Hee and Ki Bum. Dong Hee is small in stature but hot-tempered and admires the macho style. However, in his daily life, he is talkative and nervous like a girl. Ki Bum, on the other hand, is tall, masculine, and reliable in all aspects. One day, Dong Hee falls in love with Su Jeong, the most popular girl in the neighboring school. To win her heart, he disguises himself as a woman to participate in the school festival. However, the gang of Jin Seok, a year older and often bullying Dong Hee, teases him backstage. Dong Hee, in a fit of anger, gets into a fight at the event and is suspended. As punishment, Dong Hee also has to clean a warehouse. Dong Hee and Ki Bum build their friendship while tidying up the messy warehouse together. Meanwhile, Dong Hee cancels his fishing appointment with Ki Bum to go on a date with Su Jeong. However, he is discovered by Ki Bum, who happens to be tailing him. Dong Hee, Ki Bum, and Su Jeong end up going on a date together. Dong Hee tries to push away Ki Bum, who keeps glancing at Su Jeong, but Ki Bum doesn't care. The next day, the two friends meet again to clean the warehouse. Dong Hee offers Ki Bum to date Su Jeong, but Ki Bum, instead, gets angry at Dong Hee and leaves. Is it because of Su Jeong? Or because of something else? Dong Hee doesn't understand Ki Bum's feelings at all...