Muzan had found the kamado's who were the descendants of yoriichi, he killed the family but found a baby tanjiro and was intrigued by tanjiro that he showed no fears towards him. Now he raised and trained him to be a spy for muzan and hopefully bring down the demon slayer Corp

What if Tanjiro was a genius? and not just any genius but a cold-hearted one? Read this story and find out how the story would change! This will also most likely be Tanjiro x Harem as well!

Amidst a violent snow storm up in the mountains, two demons were sent out to extinguish the last living relations to the sun breathers. The Kamados. "Oi stop messing around you woman obsessed freak!" "Come on don't be so up tight!" "Huh... what's this?" A small child appeared from behind a snow covered bush, a small note tied to his neck as his bright red eyes stared at them inquisitively. "Tanjiro Kamado... you don't say" **** "You are to infiltrate the demon slayer corps and gain their trust Tanjiro. I'll always be with you, don't forget that" the demon king stated, his tone surprisingly soft. "Yes father"

⚠️ This fanfic might contain Manga spoilers ⚠️ Everybody thought that they knew the Moons. Kokushibo, Douma, Akaza, Hantengu, Gyokko, and Daki being the 6 uppermoons. Enmu, Rokuro, Wakuraba, Mukaho, Rui, and Kamanue are the lower moons. Well, that's how it was supposed to be until Muzan gathered all the Moons for a meeting. * Nezuko and Tanjiro aren't siblings. [Demon Slayer doesn't belong to me and belongs to Koyoharu Gotauge!!]

After the death of Rengoku, Akaza feels empty, as usual. No empathy for the death he had caused. Until he locks eyes with Tanjiro, a low ranked demon slayer. He feels warm inside, he has felt that familiar feeling once before, and he will not lose it this time. Tanjiro has become his new obsession.. ||Discontinued until further notice|| <<<