Susumu Miyao

Momotaro carries this sword into battle against injustice in shogunate Japan. Aided by ninja he must now wage a furious battle against the terrible “Ran” clan, villains in league with Ohara Ukon, a bitter samurai nursing a grudge against the shogunate. Together the ruthless conspirators will threaten the foundations of shogunate rule over Japan. Only the relentless slashing sword of Momotaro may save the nation from the Ran clan's army of killers.

Three high school boys leave their dormitory and go to a resort and fall in love.

The girl students of rival junior high schools stage duels and show a curious interest in sexual pastimes.