Blood For Blood

Ryuketsu No Koso 流血の抗争

Director: Yasuharu Hasebe 長谷部安春
Released: June 10, 1971
Distributor: Nikkatsu
Screenplay: Shuichi Nagahara 永原秀一

Starring:
Meiko Kaji 梶芽衣子
Jo Shishido 宍戸錠
Makoto Sato 佐藤允
Tatsuya Fuji 藤竜也
Ryohei Uchida 内田良平
Sanjo Yasuko 三条泰子
Masaya Oki 沖雅也

Info:

Also known under the title of Bloody Battle and Bloody Conflict.

Plot:

The Akiba and Shimura crime families run the streets of “K City.” With the construction of new buildings and new factories underway, the city has sprouted into a boomtown and business is good. Two of the most infamous mobs of Tokyo take notice and want a piece of the pie. As out-of-town yakuza flood the city overnight, the crime boss of the Akiba family, Tezuka (Jo Shishido), is released from prison after a five year sentence. He does not like the "change" he sees.

Thanks to Nikkatsu.com for the synopsis.