Shin Seung-ho

Yeon Shi-eun is a model student, who ranks at the top at his school. Physically, he appears like a weak boy, but, by using his smarts, tools, and psychology, he fights against violence that takes place inside and outside of his school. (imdb)

A misunderstood loner is drawn out of his shell after transferring to another high school, where he comes across new ordeals and his first love. (imdb)

It's easy to talk about teenagers, but we are now in our teens for the first time. All the moments were too serious to say I was not worried. (imdb)