Is Hyakka Ryouran: Samurai After Specials hentai?
No
Rated R+ (Mild Nudity) on MyAnimeList and not tagged as Hentai.

Special · 2015 · 2 episodes · R+ - Mild Nudity
Ecchi
Specials included with the Hyakka Ryouran: Samurai After BDs.
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