Yakuza Zessyō also known as Ode to the Yakuza is a 1970 Japanese film directed by Yasuzo Masumura. Katsu and Masumura worked together for the first in 5 years. It is based on Jūgo Kuroiwa's novel Nishi Naruyama Hotel Gake no Hana. The movie depicts a man's unusual love for a younger sister. Tatematsu Minoru is a Yakuza in Shinjuku. He has younger sister Akane. Akane comes to like Yuji but Minoru threatens Yuji to break up with Akane. Because Minoru loves his younger sister abnormally.