Is Ququ Bucai, Zaixia Yeguai hentai?
English title: Monster But Wild
No
Rated PG-13 (Teens 13 or older) on MyAnimeList and not tagged as Hentai.

ONA · 2023 · 12 episodes · PG-13 - Teens 13 or older
Action, Adventure, Comedy, Fantasy, Isekai
The player Dongdong accidentally entered the Azure World and became the weakest wild monster. After signing a contract with the heroine Bubble to become the strongest pet, he led Bubble and his companions to embark on funny and exciting adventures in the Azure world. Dongdong also discovered the phenomenon that game NPCs and wild monsters gradually awakened and yearned for the human world. To find out the truth and return to real life. The protagonist group led by Dongdong, awakened NPCs, ordinary game players, and other forces began to wrestle around the connection between the two worlds. (Source: Bilibili, Google translated)
View on MyAnimeList