Is Sore dake ga Neck hentai?
English title: That is the Bottleneck
No
Rated PG-13 (Teens 13 or older) on MyAnimeList and not tagged as Hentai.

TV · 2020 · 12 episodes · PG-13 - Teens 13 or older
Mystery, Workplace
Set in a convenience store that seems to be everywhere, through the appearance of a convenience store clerk who does not talk properly, while raising problems with the way of modern communication, we will approach the secret of the mysterious hero Mutou. (Source: MAL News)
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