Is Vinland Saga Season 2: Drowning in the Shadow hentai?
No
Rated R (17+ (violence & profanity)) on MyAnimeList and not tagged as Hentai.

ONA · 2023 · 1 episodes · R - 17+ (violence & profanity)
Action, Adventure, Drama, Gore, Historical, Seinen
Thorfinn, shown initially as he appears as a member of Askeladd's raiders, cuts down some men in the middle of a raid. When he enters a nearby house, he finds a family cowering within. (Source: ANN, edited)
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