After losing his friend to violence, model student Yeon Si-eun vows not to repeat history at his new school in a tale of dazzling growth and desperate survival.

该剧讲述为了朋友而对抗暴力，但最终没能守护朋友而留下心理创伤的模范生延时恩转学到银章高中后，因为不能再失去朋友而选择与更强大的暴力对抗时发生的悽惨的生存记和灿烂的成长故事。

該劇講述爲了朋友而對抗暴力，但最終沒能守護朋友而留下心理創傷的模範生延時恩轉學到銀章高中後，因爲不能再失去朋友而選擇與更強大的暴力對抗時發生的悽慘的生存記和燦爛的成長故事。

Nouvelle école, nouveaux amis, nouveaux ennuis.

친구를 위해 폭력에 맞섰으나 끝내 지키지 못한 트라우마를 안고 은장고로 전학 간 모범생 연시은이 다시는 친구를 잃을 수 없기에 더 큰 폭력과 맞서면서 벌어지는 처절한 생존기이자 찬란한 성장담

Depois de perder um amigo por causa da violência, o aluno exemplar Yeon Si Eun promete não repetir os erros do passado na nova escola nessa história de amadurecimento e sobrevivência.

După ce și-a pierdut prietenul din cauza violenței, elevul model Yeon Si-eun promite că nu va mai repeta istoria la noua sa școală într-o poveste despre creșterea uluitoare și supraviețuirea disperată.

En una escuela plagada de jerarquías violentas, un adolescente callado desafía el statu quo y lo arriesga todo para defender a sus amigos.

นักเรียนหัวดีที่รักสันโดษได้รับความช่วยเหลือจากเพื่อนๆ โดยไม่คาดคิด เมื่อเขาต้องต่อกรกับเหล่าอันธพาลและความรุนแรงจนถลำเข้าสู่โลกที่เต็มไปด้วยอันตรายโดยไม่รู้ตัว