You're being summoned Azazel season 1
A show about a detective and his assistant who summon demons in order to help them solve cases(usually with chaos in their wake, and the client being dissatisfied). Its a pretty funny albeit messed up show...but holy shit can I see why it was only 2 seasons.
Its almost strictly comedy, so absolutely no positive character growth.
Also the fact that all the demons look like mascot characters makes it feel like Yokai Watch...minus marketability.
Plus the detective himself is just so damn perfect, he BARELY ever struggles and while the cases go sour he usually goes up on top, and he's usually always right.
I dunno, I'm still on season 1, maybe there'll be something that'll make me sad that it ended so soon. Its really short, 26 11 minute episodes.