So the MC was accused of stealing a super relevant technique. He was not tortured and they chose to keep him imprisoned and fed, without supervision. The ideal would be to justify this with: It is a Buddhist sect that preaches non-violence, so there is a prison that is overcrowded and the MC is poorly supervised because monks spend time training in meditation and him learning the way of buddha in prison is not negative. Or that the MC is from an elder's family and for the sake of preserving the male lineage he will be locked up until the elder comes out of seclusion and negotiates. Or my favorite there is a constant government spy hunt on the sects, but the government spies stole an object, and the technique is a false flag, the MC imprisoned by a false accusation obtains the object that actually has a technique inside.
