When a series of martial misunderstandings spirals into an international incident, a Chinese martial arts student struggling to relate to his new Japanese wife is forced to take on seven of Japan's most powerful martial arts masters, each an expert in a different discipline, ranging from karate to samurai to ninjitsu.

Gordon Liu Chia-Hui
as Ho To

Yuka Mizuno
as Kung Zi

Cheng Kang-Yeh
as Shou Kwan

Ching Miao
as Ho To's Father

Yasuaki Kurata
as Takeno

Naozo Kato
as Senior Master Kato

Riki Harada
as Japanese Kendo Master

Tetsu Sumi
as Japanese Karate Master

Manabu Shirai
as Japanese Nunchaku Master

Nobuo Yana
as Japanese Spear Master