The Demon King and the Hero Have Become Outdated (LN)

Igusa, a young man who admires evil, is summoned from Earth to another world as the Demon King. Rime, a girl who hates justice, is summoned from Earth to another world as the Hero. The world to which the two people, who hope for a world of swords, magic, and battles between Demon Kings and Heroes, is summoned is―― The planet the Demon King was supposed to destroy has long since been destroyed by overdevelopment. The people the Hero was supposed to protect have fled the planet and are living in space. Humans who have already forgotten about swords and magic are happily fighting wars in space. The Demon King and Hero, whose reason for fighting has quickly disappeared, begin to live robus...