Mira was a devil who decided to leave the prosperous upper realm and instead lurk at the cold abyss. In this darkness, she waits for regretful and resentful souls, turning their memories into stories that she could read. When she chances upon an interesting life, she travels to the soul's world to fulfill their wish in exchange for a fragment of their soul.

For thousands of years, Mira journeyed through different worlds, striking deals with these unresigned souls.

Magic worlds, apocalyptic worlds, martial arts worlds, modern worlds, interstellar worlds, beast worlds... upon spending many years in each of these worlds, Mira realized that the lives of mortals were much more lively and fun. With the idea of living such interesting lives, Mira decided to collect enough soul fragments so that she could infinitely reincarnate as a mortal.

However, at the most critical moment, her luck suddenly took a turn for the worse. Just when she finally collected enough energy to support her wish, an accident happened.

Oh, it seems that Mira won't be able to escape the pursuit of these obsessive souls~