

Two friends, Kyung Min and Detective Jong Suk, reconnect after receiving a message from a friend they haven't heard from in 20 years. The message triggers painful memories of their school bullying, and soon after, a series of mysterious murders begin. As Jong Suk investigates, he uncovers connections to the past, while the drama explores the origins of school violence and its enduring impact on society.


Two friends in the past were victims of serious school bulling. One could not resist his trauma, and becomes a serial killer, walking in the path of revenge. Another one tries his best to overcome the trauma and becomes a police detective. He now faces tragic fate to risk his life to capture the serial killer.


Park Ji Hoon uses his intelligence to protect his friends and fight back against the violence that takes place both inside and outside of his school
Both about student life
Blackout is more about past, while Weak hero Class one tells about the present and how friends change overtime
Both about student life
Blackout is more about past, while Weak hero Class one tells about the present and how friends change overtime


When a member of a clergy winds up dead, a temperamental priest and a detective team up to solve the case.