Demon Slayer: Kamen Rider Kabuto Beats Muzan to a Pulp from the Start

[Invincible + System + showing off + power fantasy + saving characters whose stories ended in tragedy + dual storylines in Demon Slayer and Kamen Rider + your little sister is my little sister]

Tendo accidentally stumbled into the middle of a Rider War.

He picked up a red broken horn from the ground.

Tendo Souji transmigrated into Demon Slayer.

He witnessed Muzan murder Tanjiro’s family.

He transformed into Kamen Rider Kabuto.

After cutting Muzan to pieces, he drove him back.

He mistook Nezuko for his little sister, Toka.

Then he joined the Demon Slayer Corps, wielded a golden Nichirin Blade, and became the leader of the Nine Pillars...

A purple-lit demon from the Shocker timeline

kept sending people to hunt Tendo down.

Tanjiro: I told you, Nezuko is my sister, not yours.

Inosuke: You’re the mightiest Lord of the Mountains.

Shinobu Kocho: Mr. Tendo, I need you to take a look at the latest research.

Mitsuri: Tendo~ Your cooking is so delicious~ I want more!

Kyojuro: That man completely changed the Demon Slayer Corps in just a few days.

Demon Slayer Corps Master: With Tendo here, the Demon Slayer Corps has nothing to fear.

Sanemi Shinazugawa: Big Brother, my life is yours from now on.

All the main Riders from the Heisei decade will appear.