Naruto's Two-Way Portal: My Girlfriend Is Tsunade, and I Start in Demon Slayer from the Start

He transmigrated to the beginning of Konoha's founding, the same age as the Sannin, but with no cheat abilities whatsoever.

There was no helping it. He figured he could only flirt with Tsunade, pick fights with Danzo, and become an ordinary Kage-level ninja.

But on his twenty-fifth birthday, the System suddenly awakened.

“Your life has returned to its normal timeline. Congratulations on awakening the Dual-World Gate System. You may freely travel between two anime worlds.

“Main Naruto storyline: 1. Become the Ten-Tails' jinchuriki. 2. Rule the Five Great Ninja Villages. 3. Destroy the Five Great Ninja Villages. Complete any one objective to become the ruler of this world.

“May you soon become an unrivaled powerhouse who rules over all worlds. Beginning random world selection... Congratulations, you have drawn Demon Slayer.

“Randomly summoning your retainer... Congratulations, you have successfully summoned the Insect Hashira, Shinobu Kocho.”

“Huh?”

Looking at the pretty young woman in front of me, blinking her big purple eyes with a bewildered yet excited expression, I couldn't help getting excited too.

Damn, old Heaven, you've finally opened your eyes!

A relatively lighthearted story with a slow-burn pace. The male lead is neither a saint nor a villain.

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