Demon Slayer: I Won't Let All the Hashira Force My Brother to Love Them

[Female-oriented harem fantasy + invincible lead + everyone loves Tanjiro + from the perspective of human Nezuko + an intense love rivalry + reverse mind-reading] Nezuko Kamado was reborn. This time, she kept her human body and swore to undo every tragedy from her past life and protect her big brother Tanjiro for the rest of his life! But she never imagined that the world's timeline would go completely off the rails. The strongest fighters from the Taisho era, and even the demon progenitor who had lurked in the darkness for a thousand years, had all been reborn with their memories intact! And they had only one ultimate goal: to claim that pure, devastatingly gentle, red-haired charcoal seller for themselves. “Tanjiro, why go to Mount Sagiri? Get in my arms, and I'll teach you Wind Breathing myself!” The hotheaded Wind Hashira blushed furiously, gripping his wrist and refusing to let go. “Boy, my flame-red haori will always be open to you!” The Flame Hashira pulled him tightly into his arms, his gaze blazing with an almost pathological possessiveness. “Stay with me, and I'll buy up every piece of charcoal in the world, paying in full with koban gold.” The thousand-year-old progenitor Muzan held a black umbrella, madness and obsession roiling in his scarlet, slit-pupiled eyes. The Water Hashira, Sound Hashira, Serpent Hashira, Insect Hashira... Even the Upper Rank demons had lined up at the Kamado home with betrothal gifts! Faced with these top-tier lunatics, who fought so fiercely every day over custody (and spousal rights) of her big brother that they brought the heavens crashing down, all while shamelessly copping a feel, the fully human little Nezuko kicked down the System barrier. She silently showed off her golden finger and stepped forward: “Let go of my big brother! If you want to marry him, you'll have to get past his little sister first!”