Complex sentence: Kichijiro, who is troubled, sneaks into the holding cell, asks Rodrigo to forgive him and says he betrayed them because everyone shamed him for recanting his faith and despises anyone who reminds him of it.
Split into simpler sentences: Kichijiro, who is troubled, sneaks into the holding cell, asks Rodrigo to forgive him. He says he betrayed Rodrigo because everyone shamed him for recanting his faith and despises anyone who reminds him of it.