[Demon Slayer] Even Upper Rank One Calls Someone Onee-san

[Demon Slayer × Moonlit Romance × Everyone's Favorite × Redemption × Healing × Transmigration × Strong Female Lead]

Transmigrated as the older triplet sister of Michikatsu Tsugikuni and Yoriichi Tsugikuni, Eren Tsugikuni, who will become Upper Rank One, is determined to become the strongest Hashira and the strongest female samurai in the Tsugikuni family, and give Michikatsu all the warmth and affection she can. (She'll love Yoriichi too, just not as much as Michikatsu.) She'll protect Michikatsu and Yoriichi, stop their misunderstandings from growing, face her own feelings, and leave no regrets.

"Muzan called you a stupid woman. I need to pay a visit to the Infinity Castle."

"I don't have time. Send Yoriichi, and remember to threaten Ubuyashiki while you're there. Can I have his land?"

Host, you've gone too far! The world is about to reboot!!!

"Sister, who says you're only the Tsugikuni family's sister?" Kanae.

"Hey, since you saved my mother, I'll let your little brother off the hook." The fiery, tsundere Pepper.

"What do you mean two Kokushibos have shown up, and they've brought Yoriichi Tsugikuni with them?"

"What do you mean my wife wants to marry your sister? And I have to sit next to Yoriichi Tsugikuni as the best man?"

"If it's my sister, then I'll admit I'm the second-prettiest."

"Thank you, Master." "Don't mention it, little Kotoha. Your sister says girls should be treated well."

"Koyuki, did you say you're cured? The Lady Sister healed you?"

"Sister, why can you only belong to that world? What gives them the right?"