User blog comment:PrunesX/List of Possible Ending Scenarios/@comment-45691553-20200618042229

The one I believe in is either Ending 4 or, an ending where Hanako disappears and passes on peacefully and Yashiro graduates and moves on with her life.

The thing is Yashiro probably wants to stay with Hanako, but like you said in ending 5, it won't be satisfying if she just stays in the school forever. I was thinking maybe she can become a teacher or a worker at the school to stay with Hanako forever, but that will also be like Yashiro can't move on and is staying in the same place forever, just like Hanako. It might work if they do that while showing she still has a life outside of her work and Hanko though.