I heard they both lost their lovers and it happens they look exactly like their deceased loved once (parallel world hello). Then they're gonna fill each other's gap... Sad, next!
Is it a requirement that if you kill before commiting suicide, you'll be a grim reaper? So far the the green haired one commit murder then killed himself, then purple lady murders the "mom," and she probably did suicide after.....
I think it was understandable. If you kill another human being besides yourself, youll face a far worse "life" in that place. You cant reincarnate. You have to work, cant just go down the river. Or drown, as well. Or hide in an island.
The world is healing