So What's Wrong with Getting Reborn as a Goblin?, Vol. 4 — Nazuna Miki

Salaryman Akira has been reincarnated as the exceptionally long-lived mayor of a goblin village in a fantasy world. He has a little society to shape as he pleases, a good relationship with the local human government, and enough inherited powers to make him a force to be reckoned with. But when a goblin is attacked on a trip to the human city, it turns out that even the count, for all his authority, can't punish citizens for attacking monsters! What's a goblin to do…?!