There is a tournament to determine the world's strongest masked man called " Masquerade " ("Masked Martial Arts Tournament") , a sacred place where only those who wear "animask" can go . Shishijuroku 's father abandoned his sick mother, and the current masquerade champion, Lion Beast King , forced Beastroku to wear a beast mask . Jouroku hates his father for abandoning his mother from the bottom of his heart and vows to beat his father by winning the masquerade preliminaries. And aim for the masquerade with the friends I met in the qualifying.