[Orange + Slow Burn + Healing + Single Female Lead] Transmigrated into the body of Yoriichi Tsugikuni, the pinnacle of Demon Slayer, she joins the Demon Slayer Corps, creates her own Snow Breathing technique, and becomes the second swordsman after Yoriichi to master the Demon Slayer Mark. Yuuko originally wanted to change Iwakatsu's future as a demon, but unexpectedly… Iwakatsu: Yuuko, you should become a demon too. … Note before reading: This book is tentatively set to have a single female lead, Orange. The female lead is Shinobu Kocho. If you don't like this, please don't read.

[Orange] was arguing with the author of a ruthless game, but received a package from them. Opening the package, Jiang Ge found herself transported to a chaotic world overrun by demons, reborn into the body of a girl with the same name who was already dead. Fortunately, this damned guy didn't seem entirely heartless, leaving her a sliver of hope. This body possessed a certain extraordinary talent, and could become stronger with enough effort. Since that's the case— [Ding—] [A flash of inspiration struck you, you comprehended swordsmanship...fist techniques...Taoist magic...] [...] Jiang Ge looked up at the gods, Buddhas, demons, and monsters, [I'm too lazy to reason with you, you don't deserve to listen!] [Even if you beg me, I won't let you go!] [You were a demon before, you'll be a demon for a day, and you'll be a demon for a lifetime!] [Only I am immortal.] [Your turn is coming soon!]