Demon Slayer: Reborn as the Master, Bound to a Parenting System

[A fiercely protective leader × a whole cast whose power keeps soaring; healing every Demon Slayer heartbreak, with a promised happy ending]

After transmigrating into Kagaya Ubuyashiki, the Demon Slayer Corps leader cursed to die within three years, Lin Che bound himself to the [Raise Every Kid System] in the depths of despair.

“Potential adoptees detected: Tanjiro, burdened by a blood feud; Giyu, closed off from the world; Kyojuro, burning himself out; Shinobu Kocho, smiling with a blade hidden behind her...”

And so the frail leader began his daily routine of looking after his kids:

He cooked hot soup for Tanjiro and told the boy, “Your sister will definitely become human again.”

He tracked down Giyu, who had gone on a mission alone, and pressed a hand warmer and medicine for his injuries into his hands.

He stopped Kyojuro from training until he collapsed and issued a “mandatory rest order.”

He kept watch outside the laboratory late into the night and gently told Shinobu, “I'll walk the road of revenge with you.”

He used System pills to ease the curse, reformed the Demon Slayer Corps with modern knowledge, and took in Zenitsu, Inosuke, Kanao, and the others one by one, telling them, “You aren't monsters. You're children worthy of love.”

When Muzan finally came knocking, what he saw was

Every Hashira had grown stronger, with red blades and Demon Slayer Marks awakened; Tanjiro's Sun Breathing lit up the night sky; even Nezuko, who had become a demon, stood in the sunlight.

And the leader who should have been on his deathbed was smiling, Nichirin Blade in hand:

“Allow me to introduce you. These are all the kids I raised.”

“Today's goal is to make sure you disappear for good.”