Futoccho Kizoku wa Meikyuu de Waltz wo Odoru

Mitrov, a young noble with no interest beyond food, is exiled from his family and forced to make his way as an adventurer. However, his first dive into the labyrinth ends in disaster. Trapped by monsters, his fate seems sealed. But just as death closes in, a swift and skilled elf named Gracie saved him. Now, with his first-ever companion by his side, Mitrov steps into a new world of adventure, forging bonds and discovering a life beyond his appetite.

(Source: Overlap, translated)