Demon Slayer: I Cultivate Immortality by Slaying Demons and Play the Good Girl at the Butterfly Mansion

[Demon Slayer] [System-based cultivation] [Everyone survives] [Kanae is resurrected later] [Fast-paced, no dull moments, and after things stabilize, daily updates of 10,000 words] [Power fantasy, face-slapping and punishing scum]

[One-shot demon kills, rapidly rising power] [Unconventional demon slaying, golden finger-fueled carnage]

Reborn in the world of Demon Slayer, I become Chou Chiya, the adorable little brother Shinobu Kocho picked up.

I awaken a Demon-Slaying System: killing demons earns me slaughter points.

Exchange them for cultivation, miraculous pills, and heaven-defying treasures. Upgrade with one click, with no bottlenecks!

By day, I’m the good little brother at the Butterfly Mansion, serving tea and water and adored by Sister Shinobu.

I even pretend to be too weak to lift a finger when asked to carry a medicine jar.

By night, I become a demon-slaying fiend.

At the Qi-Guiding Realm, I crush low-level demons with my bare hands!!!

At the Qi Refining Realm, I smash the Lower Moons to bits!

At the Spirit Refining Realm, I kill the Upper Moons in an instant!

At the Golden Core Realm, even Muzan has to give me a wide berth!

At the Nascent Soul Realm, ha! Don’t even get me started. I can kill an Upper Moon with a single breath.

The Twelve Kizuki? They’re just tools for farming points.

That old bastard Muzan? I’ll grab him by the throat and stop him from regenerating!

Sister Shinobu wants revenge for her sister?

Don’t worry. I’ll bring Doma’s head right to you.

Kyojuro is supposed to fall on the Mugen Train?

Watch me crush Enmu’s core just like that, for a little fun!

In short, working as an assistant at the Butterfly Mansion is just my side gig. My real job is wiping out the Twelve Kizuki and keeping Sister Shinobu safe and sound!