Ten years in the past, an enigmatic gateway called the magic circle appeared above the planet, Earth. This opened up a pathway to the alternate universe, dubbed Alterna, and resulted in the inception of the Alternaphone. This invention facilitates a seamless "rebirth" between the two realities, allowing human Earthlings an opportunity to embark on courageous escapades and equipping non-Earth beings with the option to settle down as regular citizens. The account centers on Utaho Kurami, a girl with amnesia, and Melua Solaris, a woman hailing from Alterna. The pair traverse between mundane activities on Earth and thrilling adventures in Alterna.
