Is Lupin III: Prison of the Past hentai?
No
Rated PG-13 (Teens 13 or older) on MyAnimeList and not tagged as Hentai.

TV Special · 2019 · 1 episodes · PG-13 - Teens 13 or older
Action, Adult Cast, Adventure, Comedy, Mystery, Seinen
The episode focuses on Lupin's gang descending upon the Kingdom of Dorrente in order to rescue a famous thief who has been detained. While this takes place, the most notorious thieves from around the world gather in the kingdom. (Source: MAL News)
View on MyAnimeListShare
Check another title