Insult to high-ranking nobility? Yeah, that's a bullshit charge. Incitement of unrest is HIGHLY questionable. Even a half decent prosecutor could probably get Shachiku on the remaining charges, though.
And the good King used his pardon powers to clean up a mess. A valid use of such powers.
A speedrunner with no off switch and 3 nobles having afternoon tea, a completely normal scene. Yeah, spending time with Kiira's grandpa is a bargain of a price to pay for what Shachiku pulled off.
The blood of the hero getting weaker as generations passes makes complete sense. Every time a kid from a new generation of the hero's blood is born, the hero's DNA is halved. Even with safe crossbreeding across the families, that math is brutal and unforgiving.
Of course the old man is not letting THAT part of the incident go unquestioned.
Bride Kiira is beautiful.
The summoned hero dying in the tutorial fight is far too believable.
The old man is quite understanding and merciful for just wanting his granddaughter to come back alive.
Employing Loran to reveal monsters outside the city's walls is a solid plan.
That tick Brahm is a smart one, using the red herring technique.