Let's Buy the Land and Cultivate It in a Different World (Manga) Vol. 7

OBSOLETE JUSTICE Kidan possesses a gift called the Supreme Wielder and was summoned to another world. Together with the mermaid Plattie and the dragon Veel, he has built a homestead on the frontier. Whether it's a demon, a gang of elves, or witches, Kidan's home grows every day! The demon and human war has come to a close. Everyone can live in peace. But the Demon Lord has his hands full, so he needs Kidan's farm to look after the human princess, Lettaslat. A battle between this super-selfish princess and the veteran farm residents is about to explode!