"The disease in seen in adolescent time sophomore junior high school" is "중이병"(chung-i-ppyŏng) in Korean.
By common symptoms in adolescent around eighth grade period. Liking the game, there is no self-confidence, self-centered personality rough, thinking simple too, features such as no consideration to the other, using well ill, immediately to imitate the entertainer, there is also a part, such as the nerd me is showing. Similar to not be able to see yourself objectively in symptoms, can also be used in children and adults having a sense of mastery.