When I found this manga I initially thought it would be a revenge story or another demonstration of a protagonist exposed to something supernatural, but it ended up being a story of understanding, implying that sometimes the decision that seems correct at the moment (and maybe it is) ends up being a hasty decision, which brings unimaginable consequences in the psyche of the protagonist, making her understand throughout the story and its characters, that all actions have consequences, making her understand the weight of a life, and her life, and she taking all that into account, has to make a decision, whether to face lifehead on without regrets, or just disappear.
It is probably one of the best short manga about self-improvement and growth.
. I cried at the ending

P.S. It's a good idea to listen to the music recommended by the author while reading certain chapters.