Not all apparitions have transparent hearts... (DISCONTINUED)

FYI: This story is based on the anime Toilet Bound Hanako Kun. Characters, plot/events, groups, etc. might be changed. So not everything will be canon.

Keiko is an apparition that is a part of a group called The 7 Blessed Wonders. The 7 Blessed Wonders are a group of 7 people who have passed away, but were given something special within their life that are still connected to that person after death. Apparitions can only be seen and touched by those who believe the original rumor/story of that apparition. People can't see or touch them if they believe the fake, new rumors/story. A boy named Tohra Mattsun believed the original story about Keiko, so one day during school he saw her. He was walking down an empty abandoned looking hallway of the school and saw her sitting on the windowsill.
Tohra spoke to Keiko as if she were still alive and attending the school, which made her feel welcomed again. She spoke to Tohra everyday of every week in every month. Then after a while of speaking to Keiko, Tohra's been wondering what her life was like before she passed. Like what her real name was because only the 7 people in the 7 Blessed Wonders have to change their names, her life before passing, how she died, and almost everything.
Keiko's backstory before she passed was difficult for her to explain to anyone, even the ones who can see and touch her. So Tohra had to visit a special library that only appears at 4pm because the 4pm version of the library held the full life story of each 7 Blessed Wonders. Their story progresses until Tohra finds something different about Keiko, something different as in it's something that the other 6 Blessed Wonders don't have...