Is Egao no Daika hentai?
English title: The Price of Smiles
No
Rated PG-13 (Teens 13 or older) on MyAnimeList and not tagged as Hentai.

TV · 2019 · 12 episodes · PG-13 - Teens 13 or older
Drama, Fantasy, Mecha, Military, Sci-Fi
On a world far removed from the Earth, there is a certain kingdom that's brimming with smiles. Fate thrusts young Princess Yuki, filled with idealism, joy, and innocence, into a station in life for which her most endearing qualities are ill-matched. Her kingdom faces grave danger as the Empire threatens the realm's security. Meanwhile, on the opposite side of the conflict, an imperial soldier known as Stella Shining hides behind a facade. However, a time may come where her mask cracks, potentially costing her everything. Princess Yuki and Stella's paths will cross, and the fate of nations will follow. (Source: Sentai Filmworks)
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