The scarlet sword: Yi Yun
As its name suggests, it is a cloud that refuses to be bound, a cloud yearning for freedom.
Every sword has a soul, but this sword's spirit can inhabit a person's body.
So whoever wields this sword must have Yi Yun's sword spirit within them.
"You don't deserve to possess me, because you won't give me freedom!" - Yi Yun
"How can a sword even speak of freedom? Absurd!" - Kuang
"Is the sword the only thing connecting you and me?" - Kamiya Aoi
"That's right." - Kuang
"Life isn't as simple as you think, Miss Kamiya." - Sanada Yukimura
"All Kuang wants is that sword." - Izumo no Okuni
It feels good~~~Come on