Is Fate/Zero: Onegai! Einzbern Soudanshitsu hentai?
English title: Fate/Zero: Please! Einzbern Counseling Room
No
Rated PG-13 (Teens 13 or older) on MyAnimeList and not tagged as Hentai.

Special · 2012 · 6 episodes · PG-13 - Teens 13 or older
Comedy
Written by Kinoko Nasu, these specials are included in the BD box sets I & II. Join Irisviel as she helps Disciple No. Zero understand more details and history relating to the Holy Grail War.
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