Original title: 犬神さまと無人島修行♪目指せ下剋上！～抜いてはならん！おぬしの膣出しで儂をイカせてみせい！～
Kazuma is a student and a successor of traditional martial arts. But he, who doesn't train hard, is sent to an isolated island where a god of martial arts is believed to live. Kazuma meets Tomoe, a god of martial arts, there and she tells him that she will give him a hard training. "But I'll get your energy in return...." Like this, his erotic training begins....
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