The hero summoned to different world. Able to wield a sacred sword and blessed by the goddess. He teams up with heroines to defeat demon king as that is only way he can be sent home. But is soon disappointed when that isn't enough. Is told he can't be sent back until he brings peace to land. He now has to help forge a peace treaty between demon tribes and human kingdom. But each heroine has own agenda on how treaty should be written and will do anything to persuade the hero.