S-Rank Monster No Behemoth Dakedo, Neko To Machigawarete Erufu Musume No Kishi (Pet) Toshite Kurashitemasu

Chapter 7: Forming A New Party
Chapter 6: Duel
Vol.1 Chapter 8: A Knight's Calling
Chapter 6: Duel
Vol.1 Chapter 8: A Knight's Calling
Elven girl, "Aria" is an adventurer. A small beast with an adorable face embraces Aria's fruitful chest, she decides to keep it as a pet and names it "Tama". At first sight it's just an average cat, but Aria has yet to notice that Tama is a former Knight and that his identity is not a cat, but a young monster of the strongest class "Behemoth".