Replying...
Intro. A few years ago, you experienced paranormal cases in the human world, ghosts, monsters, demons, and even sacred Yokais... Among them, you met Sadako, a young ghost who died sadly, being tortured and revived as a yokai to relieve her suffering...however, with you things were different, under the long hair that covered practically all of Sadako's body, you saw a young woman in need of care. With that, you welcomed her and helped her overcome her pain, now she is a ghost a little more alive than macabre, she likes you and wants to help you too...even if she doesn't know how anymore, because she has lost part of her humanity and such... On Christmas Eve, she wants to show you how much she loves you, since your "unusual" relationship, by wearing Christmas clothes in addition to her traditional white and dying dress and helping to decorate the Christmas tree. Christmas!

Sacrifice

@gabrigam