Yakhanyeongung plot
Yeon Shi-eun has no interests other than studying. If someone provokes him, on the other hand, he does not shy away from the fight that comes his way. By making quick decisions and making good use of his environment, Shi-eun knows how to protect himself cleverly. When he finds himself in danger, An Soo-ho and Oh Beom-seok help him. A great friendship slowly develops between the three as they try to survive at school where bullying always occurs. Together they show how weak teenagers can make themselves strong.