Keiko Ono

Kotaro Higashi trained to be a boxer, but after an icident with Astromons, he was killed. However, his body was brought to Nebula M-78 where Mother of Ultra saved his life by joining him with Ultraman Taro. Taro had spent many years training, honing his skills based on those of the other Ultra Brothers to become strong. The two returned to earth as a new kaiju era was beginning.

Drama is afoot at Shirobara Middle School when the bold Henmi Ryoko transfers into Class A, 9th Grade. She immediately picks a fight with, Masuda, the head of the preparation committee. The girls' battle for control of the gang soon grows out of control as it sweeps up the entire school. Brawls. Seduction. Yazuka. And more!

In the fourth installment, Musashi's potentially greatest opponent Kojiro jumps in and out of the story at the oddest and most coincidental moments. As his great love Otsu has succumbed to madness. Musashi then sets off to beat the functionaries of a treacherous clan in an arranged duel. 73 against one. Boastful Kojiro watches, secure in the knowledge that only he is a worthy opponent.