Helluva Boss (season 1)

Follow Blitzo (the 'o' is silent) as he attempts to run a startup killing company in a very competitive market, along with his weapons specialist Moxxie, his powerhouse Millie, and his receptionist hellhound Loona. With the help of an ancient book obtained by one of the princes of Hell, they manage to make their work possible and together they attempt to survive each other while trying to keep their business afloat.