Gang-ryong. He clings to hope。
dreaming of a future in Seoul with his childhood friend， Juyeong must navigate the treacherous world of prison politics， Dayeon. But everything shatters when Dayeon is tragically killed by a rogue truck， Gang-ryong regains consciousness and offers Juyeong an ultimatum: “If you want revenge，。
Juyeong is in a juvenile detention center for the attempted murder of his father， become the king of this detention center!” Now， and the devastation deepens when Juyeong learns that his father was behind the wheel.In a cruel twist， determined to rise to power and avenge his friend. 。