Is Boku, Otaryman. hentai?
No
Rated PG-13 (Teens 13 or older) on MyAnimeList and not tagged as Hentai.

OVA · 2010 · 1 episodes · PG-13 - Teens 13 or older
Otaku Culture, Seinen, Slice of Life
Boku, Otary-man (otaku + salaryman) is a autobiographical manga of the author Yoshitani, who is also working as a system engineer. It's about a slice of life of an office worker, who is a little bit otaku.
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