Ichiro Tachibara, an ordinary man studies with witches and adores huge breasts, especially those of his teacher Yuko. But one day, when the boy was once again peeping at his favorite witch teacher, he was spotted by another witch, a student of the same school. But that was half the trouble, the young witch was very fiery and used a spell she bought from a stranger. The spell was supposed to turn Ichiro into a familiar, at least that's what the seller said, but of course you can't trust just random strangers, because they're usually fake spells and they're not sellers at all. Well, after applying the spell, the guy became a kind of mutating from human and back tentacle monster, which in order to maintain its life, must be charged mana, yes, the way you think ... Well, every cloud has a silver lining, and witches actually help not against, and even on the contrary .......... well, here we go!!!