[Through the Heavens] + [System] + [Demon Slayer Start] + [Decisive Killing]
The gods want to restart the universe, and the "War of the Universe" begins a game of survival, in which all living things on the planet are chess pieces.
The contestants enter a familiar dimension to practice and survive, and the final battle is a big battle. The winner can protect the planet's ethnic group from extinction...
Blue Star entered the game on behalf of Green Crazy, opened his eyes and fell into the world of Demon Slayer: Kimetsu no Yaiba, relying on many years of otaku experience to quickly improve his strength.
A long and passionate journey across dimensions and betting on the survival of civilization has officially begun...
