I just hope Korean inmates beat the crap out of him on a daily basis. Along with the guards. This is the fate he escaped in Japan, as he was not in prison with local inmates.
His attitude will change very, very fast being in that kind of environment where he isn't protected by the veil of civility.
This is just my hope however. Maybe the prisoners are very disciplined and strictly monitored. Maybe he will come out exactly as entitled and arrogant.
I have seen people change from prison though. This one guy who came from two loving parents and a nice life got locked up in a Thai prison for 6 months and came out infinitely darker and jaded. Like he understood the real world for the first time in his happy little life lol. He was NOT smiling anymore after that. Really hope Somali goes through worse.