User blog comment:IamJakuhoRaikoben/Chapter 508: Pleasure and Agony, Review./@comment-4583965-20161031202008

I think the Pleasure Magic is similar to how the Nimbus Cloud in DragonBall worked. One must have a pure heart and not commit and sins to resist it. Sins like killing, lecherous (I mean like Makarov's level), etc.

Kids like Romoe and Asuka have complete immunity, until their reach of age.

Cana - I guess drinking too much alcohol isn't a sin.