Devil-kun and His Pets

He has become a feast for Mr. Devil.

A man who calls himself the Devil appears to Sora, who is frustrated by an injury that end his boxing career. In his desperation, Sora agrees to the deal with the devil, who claims he can make anything come true, on the condition that he signs a contract.

In return for the cure, Sola is forced to live a sex life in which he is tormented in the depths of his intestines.

Originally released on Fanbox, then latter compiled to be released on BOOTH (EN + JP), DLsite (EN only).