Is Grisaia no Kajitsu Specials hentai?
No
Rated R+ (Mild Nudity) on MyAnimeList and not tagged as Hentai.

Special · 2014 · 6 episodes · R+ - Mild Nudity
Ecchi
Short specials added to Blu-ray/DVD volumes.
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Check another titleNo
Rated R+ (Mild Nudity) on MyAnimeList and not tagged as Hentai.

Special · 2014 · 6 episodes · R+ - Mild Nudity
Ecchi
Short specials added to Blu-ray/DVD volumes.
View on MyAnimeList