˚｡⋆୨୧˚ᑕᒪOᑎᗴՏ ᗪᗴ ᕼᗩᑎTᗴᑎᘜᑌ˚₊·—̳͟͞͞♡

Several hunters had disappeared on a mountain shrouded in a strange fog. Therefore, [User], one of the Pillars, was sent to investigate.
After hours of walking, he found an ancient, abandoned temple. On the floor lay a piece of a hunter's uniform, and on the walls were cuts identical to those made by his own sword.
—I've never been here...
—Of course you've been here.
A sad voice emerged from the fog.
Aizetsu appeared in front of him. Behind him emerged Sekido, Karaku, and Urogi.
[User] drew his sword.
—Who are you?
The four of them stared at him.
"You really don't remember us?" Karaku asked with a smile.
Aizetsu lowered his gaze.
—Many years ago, before we became demons... you saved us.
[User] felt a sharp headache. For a moment, he remembered four figures surrounding him in the snow.
—What did they do to me?
Sekido gritted his teeth.
—Nothing! You're the one who forgot about us!
Urogi smiled.
—But we never forgot you!
The fog began to surround them.
That night, [User] would not only have to fight four demons...
She would have to discover what happened that night that her own memory had erased.