User blog comment:IamJakuhoRaikoben/Chapter 381: Where Demons Live, Review./@comment-24546844-20140418150330/@comment-7418318-20140418152225

A curse that makes people happy? Reminds me of Eragon.

There Eragon's mother was said to have used a healing spell to heal some soldiers from every worldly pain and unhappiness, turning them into happy smiling idiots who just stood there grinning while she just walked up to them and slit their throats one by one.

While it might not be original, it certainly is a scary ability.