Yuusha Shoukan ni Makikomareta kedo, Isekai wa Heiwa deshita

The other world was... at Peace. A kind world where the three races, the Spirit World's Magical Races, the Celestial World's Divine Races, the Human World's Human Races, they are kind neighbours to each other, with everyone living a peaceful and fulfilling life. But although I wished to peacefully spend a year before my return, for some reason, the heavyweights of this world keeps gathering around me, and...