[quote=@YamiCuoreLaroux]
 "Now, don't let that break, it's important to your survival. And don't look so upset! It won't be that bad~. Well...I haven't had a bound assistant-slash-forced summon in a while, but I assure you that your soul is perfectly safe!"
"He was nice, wasn't he?" 
[/quote]

This post, probably. I guess the soul-stealing bit might be a tad vague, though.