Demon Slayer: The Music Demon Descends, and the Ice Sect Leader Gives Up

[A Tongmo and Kotoha fanfic, if storyline: Tongmo (reborn) x Kotoha (transmigrated)]

[Kotoha becomes a demon at the beginning | Loyal-dog Tongmo, high energy throughout with no angst, all nine Hashira survive, the Demon Slayer Corps, the Paradise Faith, and the Twelve Kizuki form an alliance]

In her previous life, she lived a life gloomier than the underworld.

She thought she'd be able to meet a ghost after she died, but she never expected to actually run into one.

And then she became Kotoha, who was abused by her husband and abandoned.

Abused? Not a chance.

The moment she took over Kotoha's body, she slaughtered her despicable in-laws to the last one.

Then she turned around and spotted a handsome, blond demon.

"Hey, isn't that you, Tongmo? I don't want to be human anymore. Turn me into a demon."

Tongmo: "?"

Wonderful! Tongmo didn't hesitate for a second.

Muzan: "What do you mean my Twelve Kizuki have formed an alliance with the Demon Slayer Corps?"

Tongmo: "Who knows? We all answer to Lady Kotoha now."