Woah, an actually good king? Yeah, summoned against his will but still. It's kinda surprising.
I have been reading so many cliche mangas that this tiny change in plotpoint characters makes me think this might actually be good or atleast unique.
God, I have really set my bar for good story too low in hopes for enjoying many average mangas. (Not saying I can't recognize great from good from bad).
So, change my mind you. Show me a story worth the read.