Star Abyss Traveler: Sextet from the Broken Era

A Funny Fantasy Story About the Male Protagonist's Sneaky and Mean-Spirited Dog

I want to read content similar to "I practice all forbidden laws, so my lifespan is infinite." (´･ω･`) I want to read something fantasy-like, something funny, where the male protagonist is a sneaky dog, something bitchy, something that can be written in an invincible genre, or a field story, it can have multiple female protagonists, it can have a single female protagonist, or even none.