Jeong Dae-hoon

Goong-dahl, a typical loser billed as the "unluckiest man alive" returned to the school after one year's intense training of reject student's treatments. Now he is up to the challenge of posing him self other than a typical loser. With the leads from his another old fellow mate he started with a new face by threatening and rescuing hot girl "Min-ah" from several oldies in the school. Everything went smoothly up to the plan until one of the bully is happened to be the schools notorious thug "Jae-koo" thus receiving invitation to a grand duel on the roof top after the school.

When police officer Kyungjin met with Myungwoo accidentally in a crime, she found that this responsible teacher was a really nice guy. At that night, Kyungjin got into a fight with a bunch of high school kids and got trouble in a big gun fight between rival drug dealers. Myungwoo tried to help her but then something happened that forces them stayed together all day long. They got closer to each other and Myungwoo was not able to repulse the strange but pure nature. He fell in love with her. One day, when Kyungjin was chasing a notorious criminal, Myungwoo helped her again, however, not knowing that what would happen that day changed their relationship forever...

A thirty-two year old man falls in love with a seventeen year-old highschool student whom he sees at the bus stop everyday.

Dong-hyun, Seok-gu, Sang-min and Young-je are typical adolescent high school boys deeply curious about sexual matters. When a female apprentice teacher, Ms. Kim Yoo-ri begins teaching at their all boys school, she captures the lust and imagination of four of her students, who cannot stop fantasizing about her. Dong-hyuns secret 'love' for his teacher is shattered by news of her affections for another teacher Mr Gong. Yoo-ri has already fallen for the homeroom teacher, Mr Gong, and has her own daydreams about what it would be like with him. Unfortunately, Mr Gong has forsaken love in his life, and is immune to her come-ons. Yoo-ri must get him to accept her advances, while rejecting the rapid-fire advance of her four students.