Hard to make a romantic cartoon!

Yunjae possesses the body of a character in a romantic comic. The character he possesses is a supporting character called Doyeong, the sickly brother of the story’s heroine, Dohui. Doyeong, a victim of bullying, meets a tragic end and eventually commits suicide. In order to survive, Yunjae tries to change the plot of the story… Will he be able to go back to his original world?