The Impostor Luca and a Black Monster

Sorcery is taboo. People who reveal sorcery to the public will be condemned to the stake–. Luca, a young man who claims to be a student traveling and living off of scamming others, owns the banned magic \"mana.\" Luca hides his \"mana,\" which is referred to as the \"devil\'s magic\" and goes on a journey to find his father\'s enemies and the grimoire left by his ancestors. On his journey, he meets a puppy with black and white fur. The dog he named Saro has the hidden ability to transform into a monster or a human…!? One man and one dog\'s medieval renaissance style fantasy opens its curtain!