Naruto: Muzan of the Hatake Clan

After transmigrating into the world of Naruto, he awakens as Hatake Muzan, Kakashi Hatake’s older brother. He has no system and no guide to explain what has happened to him. All he knows is that he has the name and appearance of Muzan Kibutsuji, the King of Demons and main antagonist of Demon Slayer: Kimetsu no Yaiba, along with his weakness to sunlight. Even Tsunade, one of the greatest medical shinobi, is unable to cure his mysterious condition. Forced to live beneath the shadows, Muzan begins experimenting with his strange body, carefully uncovering its abilities, limits, and weaknesses one step at a time. Every discovery makes him stronger, but also raises a dangerous question. Just how far from human has he become? Beside him is Kakashi, his gifted and fiercely competitive little brother. As war draws closer and the shinobi world descends into chaos, Hatake Muzan must master the power within him, protect those he cares about, and find a way to overcome the weekness that threatens his very existence. This is the story of a monster born into the Hatake Clan and his rise through the shinobi world from the shadows.━━━━━━━━━━━━━━This story mainly takes place in the Naruto universe, with a few elements from Demon Slayer included. Don’t worry if you’re unfamiliar with Demon Slayer, I’ve added some helpful wiki-style explanations throughout the story so everyone can follow along. — Description from novelcodex.orgFull novel: Naruto: Muzan of the Hatake Clan — read the rest free on N​o⁠v​e⁠l​C⁠o​d⁠e​x⁠.​o⁠r​g⁠