Okometsubu Fujiyama recently transfers to Wakame High School with a goal of making 100 friends. His plan is disrupted when he meets the eccentric Masaru Hananakajima, a martial artist who specializes in the “Sexy Commando” style. Masaru forms a club dedicated to this technique and invites Fujiyama, whom he nicknames Fuumin, to join. The club soon attracts a quirky mix of members, and as it grows in popularity they encounter aliens, moustaches, and adorable fuzzy animals along the way.