Is Schoolgirl Strikers: Animation Channel hentai?
No
Rated PG-13 (Teens 13 or older) on MyAnimeList and not tagged as Hentai.

TV · 2017 · 13 episodes · PG-13 - Teens 13 or older
Action, School, Sci-Fi
It's the near future. The newly established girls' private school Goryoukan Academy has another face. This school has a special unit, Fifth force, who is assembled and selected from the school's student body in order to fight an enemy called O'bli. This is a story about love, courage and friendship about the girls called Strikers.
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