Yuna Training
"There's no telling when the demons will return, so I have to be as prepared as possible! I refuse to let anyone die!"
-Yuna Haruka
This takes place after the Swordsmith Village arc and before the Hashira Training. Yuna fears that Muzan and the demons are preparing something but she doesn't know what, so she's currently practicing her form and techniques, in hopes of being ready for what's to come.