Bai Jin transmigrated. He had no System, and no mysterious old mentor. But luckily, the world he transmigrated into wasn't the only one! And he wasn't the only “him” who had transmigrated!
Demon Slayer Bai Jin: “Foster fathers, please save me! I even spoiled the original story for Muzan, and now the Duke Virus has arrived? What am I supposed to do next to survive Muzan after my identity as a transmigrator is exposed?”
Ultraman Bai Jin: “Easy. I'll just lie low until the finale of Ultraman Tiga, then let everyone experience what it feels like to become light!”
Type-Moon Bai Jin: “Actually, I have an even easier way...”
The other Bai Jins: “?”
Ultraman Bai Jin: “@Type-Moon Bai Jin, can you explain why using your method turned me into Dark Zagi?!”
Worlds featured include Demon Slayer, Fate, Tiga, Naruto, One-Punch Man, and more...