Conquering the World, Starting with Demon Slayer

"Hey, only the strong never have to bow their heads to anyone, kid!"

"I, Aizen, master of the Seven Realms and conqueror of the Infinite Cycle Worlds, will take you to the pinnacle of this world. You will be invincible, unstoppable. Swear your soul's allegiance to me, and from now on, you will protect your sister, Nezuko!

Take revenge with your own hands. Even if they're gods, you'll kill them!"

When a demon appears before the child of the Scarlet Blaze, a devil's whisper and a deceitful contract change Kamado Tanjiro's life forever!

"Mr. Aizen, why is the Breathing Style you taught me different from the one my teacher taught me? It seems really powerful, but my body can barely keep up..."

After slaying the man-eating demon, Tanjiro turns around.

"Mr. Aizen?"

"Tanjiro, your sister has been getting cuter lately!"

"...Please try to act like a proper teacher!"

This novel and its characters are entirely fictional. Any resemblance to actual people or events is purely coincidental. Do not imitate.