Hiyodori Tenhei

Two boys, Tenhei and Aranojo, are practicing Kuruma-ryu Jujutsu in Hiyodori Valley, Kiso Mountains, Tenryo. However, the two masters are defeated by the viper Gentaro, a user of Tang Kenpo, and the Yokoyari Danjo of Maniwa Nen-ryu, released by an evil magistrate aiming for gold bullion. On the verge of his death, his master entrusts the Ten no Maki, the secret book of Kuruma-ryu Jujutsu, to Tenhei and the Earth Maki to Aranojo, and orders a match to be held in three years and the winner to succeed him.