32-year-old nerdy office worker Hinata Tachibana has once again blundered at a singles mixer, no thanks to his hunky best friend who is always by his side. While he's grumbling nonstop about it on the way home, a naked goddess appears out of nowhere and sends the two friends to another world!

Furthermore, the goddess plays a prank and turns Tachibana into a blond woman with a peerless body?! To return him to his manly form, the two set off on a journey to defeat the demon king, but thanks to his beauty they'll find trouble everywhere they go! Can they save the world before their lifelong bromance becomes a...romance?