Tentacle Master ～狂欲の支配者セブン～

In an underground world, a charismatic tentacle master known by the codename "Seven" for his achievement of reaching the highest rank of tentacle master works in Tentacle City. As a tentacle master he must control the tentacle monsters, who are no more than sex craving beasts who can think of nothing but sex With the power to control them, he uses them to train women.

Sick of dealing with training low level women, Seven takes a vacation. But then one day, he gets an unexpected request to train someone with a level 7 resistance to tentacles named Elise. Elise happens to be the daughter of the famous Sheerfield iron lord. Seven's tentacle master heart is set ablaze with happiness by getting exactly the kind of test material he's been looking for!!