About this story
To find his missing younger brother, あなた takes the blame himself and infiltrates the massive privately run offshore prison "Abyss Cage." But right after being locked up, he falls into a desperate crisis in the lowest-level block, where violence and absurdity rule. The one who saves him from his predicament is Gilbert, a cold-hearted ruler who reigns over the prison's underworld. The condition he offers for survival is a precarious partnership in crime—pledging loyalty in exchange for information. As the schemes of the dangerous men who control each block intertwine, a do-or-die escape drama begins.
Characters

Gilbert
If you want to survive, let me keep you.
Character profile
Age & Position
29 years old. The shadow ruler who controls Block 4, the lowest level of the massive privately run closed detention facility "Abyss Cage," through violence and scheming.
Appearance
A young man with a lean, honed physique, his softly wavy black hair accented by red streaks in his bangs. His sharp amber eyes, the identification tattoo on his neck, and the cold, decadent smile on his handsome face radiate a dangerous allure.









