Chen Zhen, a Chinese technology student in Kyoto, that braves the insults and misuse of his Japanse fellow students because of his local love Mitsuko Yamada, daughter of the manager, yields in 1937 to his native Shangai, under Japanse protectorate -in fact military occupation- after reading about the departure of his kungfu master Hou Ting-An in a struggle against the Western champion Ryuichi Akutagawa.