While they traveled together during DGSD, Teen San Tung Lo seemed bent on forcing Hui Juk to break his Buddhist commandments. I can understand her making him break the killing commandment: she needed him, after all, to be her uber-powerful bodyguard against her enemies (particularly Lee Chou Sui). Beyond that, however, I didn't see the point of her forcing him to break the meat-eating commandment and the sexual relationships commandment. What did Teen San Tung Lo have to gain by making Hui Juk a Buddhist sinner?