I want a slime companion... besides being adorable, it'd be so useful in day to day life. Though, I wonder if he will learn how to cook gourmet trash.
I hope this doesn't have a romantic subplot. As much as i am loving this so far, this really does not have much going for it besides its atypical setup. A harem or even a human transformation would really detract from that (especially the human transformation one, since one of the selling points is dealing with having a gluttonous monster as a companion. Just having a gluttonous bishounen or bishoujo who is occasionally a demon wolf kind of ruins that)