Is Shadow Skill (1996) hentai?
English title: Shadow Skill: The Movie
No
Rated R (17+ (violence & profanity)) on MyAnimeList and not tagged as Hentai.

OVA · 1996 · 3 episodes · R - 17+ (violence & profanity)
Action, Adventure, Drama, Fantasy, Martial Arts, Shounen, Super Power
In a war torn world of deadly conflict, one small group of heroes stands against the forces of darkness, armed only with two weapons—their unswerving dedication to good and the superhuman martial art known as the Shadow Skill... (Source: ANN)
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