U12 (Under 12)

Under Twelve

Updated June 2026

U12 (Under 12) is a completed Action, Drama, Gore manga (2015). Read it online free on XOmanga.

12 girls get sent to a prison, only to be told that they no longer have any human rights. They are told that the prison is actually a secure facility where the most evil prisoners are housed, those prisoners who have hunted/murdered young girls/boys, and the girls' tasks are to fulfill their “requests” during a “party”. A cruel survival game of staying alive and untouched in a corrupt government prison, where death is always around the corner.