Everyone Becomes an Ultraman: I Wield the Dark Ring

One day, a universe was covered in darkness, and all life within it was on the brink of annihilation. Everyone on Earth was summoned to that universe, where they became Ultraman and saved the world.

Gai Si had originally thought the same, but then he looked at the Dark Ring in his hand and his own strongest Light System...

Um, is it possible that I want to become light?

This novel and its characters are entirely fictional. Any resemblance is purely coincidental. Do not imitate.