一名刚毕业的直男慕名加入位于山中的“手枪特训营”，集结一群“手枪达人”，他们尝试各种打手枪的终极密技。但这名直男有天遭到某个同志成员强暴，另他对于打手枪的信念开始动摇。

In a small fishing village in northern Kanto, Nami stands at the edge of the dock, waiting for her husband’s boat to return. While waiting, Nami lives with her father-in-law, Gengoro, who uses her nightly as he pleases. One day, a man named Kaneda washes up at the port, in hiding after committing a heinous sex crime, and begins to work for a fisherman named Kunio. While Kaneda is doing his best to reform his life, all hell breaks loose when he crosses paths with Nami, and his natural urges kick back in.