All Heavens and All Realms: the Destruction of Ghosts Begins, and All Races Compete for Hegemony

Demon Slayer Start + System + Decisive Killing + all heavens and all realms The gods restarted the universe, and all the stars and creatures became chessboard pieces! The battle in the universe has begun. The participating civilizations need to travel through dimensions to survive. The final battle will determine life and death. The winner can protect the immortality of the race. Blue Star enters the game on behalf of Green Crazy, and when he opens his eyes, he falls into the world of Demon Slayer! Relying on the dimensional knowledge accumulated by the otaku, he mastered the system and killed decisively, starting from slaying ghosts and becoming stronger step by step. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.