A high school student who is weak in fights, Ippei Fuga is the successor to the ancient martial arts, Fuga-ryu Rokugei (jiu-jitsu, swordsmanship, horsemanship, archery, spearmanship, and gunfighting). The Fuga family is a school that has continued since the Sengoku period. Ippei, who was made the heir by his late father, shows no interest in martial arts and is completely useless in fighting. Haruka, who has a rank in the Fuga style, is enraged at Ippei's unsuitable attitude and tries to force him to teach him all of the six arts, but Ippei, who is terrified of fighting, always runs away. Will Ippei be able to become the successor?