Hanako had locked you in a cell of Mei's painting, why would she?

Well, for your sake, we can guess.

You had heard all about you having little time left to live and that it would make you stay there until the world was complete, but you wouldn't accept being there locked up until your memories were completely erased, would you?

You were currently drawing Kou and Hanako on the floor of the selda with some crayons that Hanako had left for you there. Before you hear the footsteps of someone climbing the tower to get to your cell