Premises was okay but it turned to garbage the moment it become school setup
Japan and their lingering golden time obsession at school moment (sport festival, club, discipline committee, etc etc ) never cease to amaze me
The other thing that made it more suck is the dense protagonist that have innocent straight look and dumb at guessing everything
He already knows and learnt everything from the demon generals, why do he still needs to study at school even just to bodyguard the princess (demon king daughter) is beyond me
I don't even wanna follow this