After Kang Hu's death from bullying, the family was torn into pieces. His younger brother suppresses his resentment and heads back to school. The story begins exactly one year after Kang Hu's death when his brother seeks to destroy the delinquent circle... "Dokgo Rewind" follows Kang-Hyuk and the events leading to his brother's death one year prior to the events that transpire in "Dokgo".