Sakamoto Days - Volume 21

In order to meet the oracle, Shin and Heisuke voluntarily have themselves incarcerated in the FJA prison, where the country's worst criminals are held. As soon as they arrive, the inmates and the chief guard subject them to a hazing ritual that puts them in
a critical situation. Will they manage to get through this hell to the bottom basement where the oracle is located? Let the carceral tourism arc begin!