Beast Soul: My F-Rank Worm Is the Primordial Dragon!

Arthur Lane once stood as the pride of the Lane family, but after his fall from grace he is left with a humiliating awakening: an F-Rank creature known as the Sleepy Worm, the weakest beast a person can bond with. Scorned by the relatives who once praised him, Arthur must find a way to survive the mockery and the cold dismissal of his own household. Beneath that lowly form lies a secret power that could turn the family's contempt into a reckoning.