The ending is likely to be a crematorium, a complete crematorium.
My sister is a normal person in the early stage and later stage. She will not get sick or become black.
She won't try to save Jie who has gone dark to the end. It can be regarded as the younger sister pulling herself away from the perspective of a bystander (during this period, Jie's wallpaper love) accompanying her.
Respect the original work ooc belongs to me
Intention: If you can't get it, don't force it