>>53444911Sorry the honor goes to Warrior from Another World by Takachiho Haruka. February 1979. More than 2 years earlier than Dunbine. But well we can agree to disagree that The Tale of Urashima Taro might be the first isekai literature ever made. Or the tale of Adam and Eve, except that one might be reverse isekai instead since Adam came from another world (Eden).