Girl Boss: Diamond Showdown poster
Where to stream

Girl Boss: Diamond Showdown

6.519741h 27mMovieActionDrama

Keiko Aizawa a vengeance-crazed vixen sets out on a journey to avenge the death of her older sister.

DirectorIkuo Sekimoto
WritersTatsuhiko Kamoi·Seiko Shimura

Where to watch

Not available in Australia
Streaming in 1 other country

Girl Boss: Diamond Showdown isn't on any streaming service in Australia right now, but it's available in Japan. Streaming rights are licensed per country.

Cast · Directed by Ikuo Sekimoto

RIReiko Ike
Reiko Ike
Keiko Aizawa
TWTsunehiko Watase
Tsunehiko Watase
Kuroki Tatsuya
RERyōko Ema
Ryōko Ema
Kuroki Eri / Razor Eri
RFRitsuko Fujiyama
Ritsuko Fujiyama
Miwa Tatibana
MA
Mitsuko Aoi
Mayumi
KUKatsumasa Uchida
Katsumasa Uchida
Isozaki Kanji
TATōru Abe
Tōru Abe
Oshima Humio
RIRena Ichinose
Rena Ichinose
Ota Setsuko
TKTamaki Katsura
Tamaki Katsura
Kyoko
JM
Jun Midorikawa
Kiyoko
HMHiroki Matsukata
Hiroki Matsukata
Matsumoto
HMHideo Murota
Hideo Murota
Hirata Yayoi

More from Reiko Ike · Lead actress

Sex and Fury
Sex and Fury
1973 · 6.2
Female Yakuza Tale
Female Yakuza Tale
1973 · 6.1
Bohachi Bushido: The Villain
Bohachi Bushido: The Villain
1974 · 6.5
Battles Without Honor and Humanity
Battles Without Honor and Humanity
1973 · 7.3
Zatoichi Monogatari
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1974 · 8.2
Girl Boss Guerilla
Girl Boss Guerilla
1972 · 6.0
Graveyard of Honor
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1975 · 6.7
Lustful Shogun and His 21 Mistresses
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1972 · 4.3
Terrifying Girls' High School: Lynch Law Classroom
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1973 · 6.2
Company Buggers
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1975 · 7.0
See all fromReiko Ike

More from Tsunehiko Watase · Co-star actor

Homicide Team 9
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2006 · 7.0
Morning Moon Is Cruel
Morning Moon Is Cruel
1981 · 4.3
Antarctica
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2011 · 8.3
Battles Without Honor and Humanity
Battles Without Honor and Humanity
1973 · 7.3
The Politicians
The Politicians
1983
Omiyasan
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2002 · 7.7
Katsu Kaishu
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1974
Chiritotechin
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2007 · 8.0
Japan's Don
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1977 · 7.2
The Fire Still Burns
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1993
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More from Ikuo Sekimoto · Director

Furuya Ikkou's Great Detective Kindaichi Kousuke Series
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1983 · 7.0
Shadow Warriors
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1980 · 8.0
Ooku: Empress of the Tokugawa
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1988 · 2.7
Double Rope Torture
Double Rope Torture
1985 · 4.6
The Desire of Angels
The Desire of Angels
1979
Story of a Nymphomaniac
Story of a Nymphomaniac
1975 · 5.2
Rope Torture
Rope Torture
1984 · 5.7
The General and His Empire of Joy
The General and His Empire of Joy
1977 · 4.6
Tattooed Kin-san vs Miss Ninja Thief
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1997
In Blazing Love
In Blazing Love
1994 · 8.0
See all fromIkuo Sekimoto

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Girl Boss: Diamond Showdown — streaming FAQ

Which OTT platform streams Girl Boss: Diamond Showdown?

Girl Boss: Diamond Showdown isn't on any streaming service in Australia yet, but it's available in Japan. Streaming rights differ by country — switch your country in the header to see where.

Is Girl Boss: Diamond Showdown on Netflix?

No, Girl Boss: Diamond Showdown is not on Netflix in Australia as of September 2026.

Is Girl Boss: Diamond Showdown on Amazon Prime Video?

No, Girl Boss: Diamond Showdown isn't on Amazon Prime Video in Australia right now.

Where can I watch Girl Boss: Diamond Showdown for free?

Girl Boss: Diamond Showdown isn't streaming in Australia yet, so there's no way to watch it free at the moment.

Is there a sequel to Girl Boss: Diamond Showdown?

Yes — Girl Boss: Diamond Showdown is followed by Girl Boss: Crazy Ball Game (1974) in the Girl Boss.

Is there a prequel to Girl Boss: Diamond Showdown?

Yes — Girl Boss: Escape From Reform School (1973) comes before Girl Boss: Diamond Showdown in the Girl Boss.

Is Girl Boss: Diamond Showdown part of a trilogy?

No — Girl Boss: Diamond Showdown is part of the Girl Boss, which has 7 films.

How many movies are in the Girl Boss?

There are 7 films in the Girl Boss: Girl Boss Blues: Queen Bee's Counterattack (1971), Girl Boss Blues - Queen Bee's Challenge (1972), Girl Boss Guerilla (1972), Girl Boss Revenge: Sukeban (1973), Girl Boss: Escape From Reform School (1973), Girl Boss: Diamond Showdown (1974) and Girl Boss: Crazy Ball Game (1974).