L'Hyper battle" terminé, Kiichi et Baramaru montés dans le même train mettent en jeu leurs honneurs respectifs dans un affrontement opposant des mains nues à un super-katana !! Quelle issue connaîtra ce combat mortel au coeur d'un train infernal lancé à pleine vitesse !? Quant au père de Kiichi, le voilà qui quitte finalement l'hôpital ! Mais un homme mystérieux s'en prend alors à lui !!"
Tetsuya Saruwatari (猿渡哲也, born June 25, 1958) is a Japanese manga artist.
He was born in Ōmuta, Fukuoka prefecture, Japan. After dropping out of high school, he worked as assistant of Hiramatsu Shinji and Motomiya Hiroshi. He made the debut as solo manga artist with 海の戦士(Umi No Senshi) on Weekly Shōnen Jump. Saruwatari's longest running manga is the action comic Tough which has been serialized in Young Jump over a decade. Saruwatari also created Riki-Oh, a cult manga sensation featuring graphic martial arts fighting, which was adapted in a Hong Kong live-action film and Japanese OVA.