I think it might be the bride that was arranged to hayato. If you look at ther kimono at ch 7 and the one in ch 9, it is the same sakura pattern. Maybe she became a spirit due to guilt but also maybe due to having her heart broken. I guess she genuinely loved hayato and is silently waiting for him to come back to her.
it's actually the maid where in ch7 she was supposed to give the letter to Touma, but she decided not to since she didn't want to wake him up and trouble him, so she ended up being this ghost having guilt that if she had given him the letter none of this would have happened
I reread it again and you actually correct lol ε=ε=(ノ≧∇≦)ノ that hair and kimono matched the maid omgg that details thoo ┗( T﹏T )┛
Oh shit i'm actually crying...T-T
Thank you sm you are d best. I reread this almost three time and still didnt get it. But thanks to this i can now sleep
Who is the last demon in the hoise- become a woman in kimono(what is the relations)