Minoru Kunizawa a.k.a. Shūsaku Niki is a Japanese film director, screenwriter, and actor best known for his work in the pink film genre. Including Yutaka Ikejima, Yumi Yoshiyuki and Tarō Araki, Kunizawa is one of the four top directors of Ōkura Productions (OP) at the turn of the millennium, and the only one of the four who did not start out as an actor. Instead, Kunizawa joined the film industry as an assistant director to pink film pioneer Satoru Kobayashi. He made his directorial debut with Kyonyū: hasande kuwaeru (巨乳 はさんで咥える) (1995). Kunizawa's films have been very popular with pink film fans, and he has had more than one film in the Top Ten at the Pink Grand Prix for multiple years. He has also won the Best Director prize twice. Irresistable Angel: Suck It All Up (2003), for which he won Best Director, is an erotic variation on the X-Men story.

Oshiego to Kyôshi: Itazura Hime Hajime
2003 · as Electrical Shop Worker

Bad Buddy Butt
2015 · as Tied up man

Tight Short Trucker
2017 · as Maeda (Tsukune's apprentice)

Otenki-caster: Hare nochi nurete
2015 · as Akira Nozawa

Forced Indecency Sisters
1994 · as Shop manager

Kinjo no hitozuma: Ureta hakuchû furin
2007 · as Tatsuya

Midare sanshimai: Uneru moegoshi
2006 · as Udagawa

Tsumetai onna: Yami ni hibiku yogarigoe
2018 · as Detective

Furin chûdoku: Kannô no madoromi
2007 · as Shimizu

Dare ni demo iyarashii himitsu ga aru
2018 · as Morikawa

White Rose of Santa Monica: Confused
1993 · as Masashi's younger brother

Pink zone 3: Dutch wife bojô
2020 · as Soldier

The Tutor I Loved, My Pure White Body Was Tainted
2004

Sexual Harassment Baptism: Eating Disorder
2008 · as Itta Enomoto

Groper Train: Naughty Play
1993 · as Branch manager

Gift
1997

I Thought About You
1997 · as Rapist

Tôkyô jôka: Furueru chikubi
2018 · as AV Staff