Sign-In in the Main God Space: Invincible, Starting With Demon Slayer

Li Xuan, a man of cool and distant temperament, arrived in the Main God’s space of another world with a sign-in System. Unlike other Reincarnators, he had the ability to know the storylines inside out.

“Li Xuan is the greatest Breath Swordsman in history!” the Master, Ubuyashiki Kagaya, praised him at the Hashira meeting.

“He actually dragged Muzan out into the sunlight!” The Hashira were aghast.

“Why are you so fragile?” Li Xuan said, holding up a stunned Muzan, whose life had lost all meaning.

In the Sword Art Online world, he cleared all one hundred floors, and not even the GM could stop him.

At Marineford, he beat up all three Navy Admirals, the Whitebeard Pirates, and the Red-Haired Pirates at once just to boost his rating.

In the Fourth Great Ninja War, fighting Kaguya was like picking on a child.

In Jujutsu Kaisen, he made every cursed technique his own and eradicated every supernatural horror in the world.

Time flew by in the blink of an eye, and he soon stood above all the Reincarnators.

(Eighty percent invincible protagonist.)