Returned From Another World, Earth Turned Out to Be Quite the Fantasy Too. Also, Losing Heroines, Stop Looking This Way

A brief description of the manga Returned From Another World, Earth Turned Out to Be Quite the Fantasy Too. Also, Losing Heroines, Stop Looking This Way:

Six years ago, Natsuki Yura was summoned to another world as a hero. After defeating the Demon King and finally managing to return to his original world, he discovered that Earth was actually full of fantasy too—psychics, aliens, angels, gods, you name it.