Time Travel Demon Slayer: Butterfly Ninja and I Are Childhood Sweethearts

Require Butterfly to Endure Single Heroine

I want to read a book like "Demon Slayer: Kimetsu no Yaiba: The Unkillable Raihu Swordsman". Looking for a book with the heroine Butterfly Ninja

Demon Slayer Characters Travel Back in Time with Their Memories, Preferably Ginin

I would like to read a book similar to "The Fragrance of Wisteria on the Other Side: Submerged Water and Butterflies". Is there any demon slayer character who goes back to the past with memories, preferably a ginin?

Demon Slayer, Are There Any Female Protagonists Named Butterfly Sisters, Who Are a Little Sweeter?

Demon Slayer Fanfic, Single Female Protagonist, Preferably One of the Butterfly Sisters, Please

I want to watch content similar to "Demon Slayer: The Beginning is Taken Home by the Butterfly Ninja". Demon Slayer Doujin