Not gonna lie, I did teared up a bit. There's meaning to the open-ended conclusion of Yakumo's father (though also it made me interested about the novel) once his objective is revealed and made everything make sense. He made such a good villain in the way, as a ghost, he cannot commit crime but instead push people into committing one is such a great commentary of his role in the narrative. Yakumo's story ended with him surrounded with people emphasize how he lives a different life compared to his past as well as his growth, and I love how it takes its time in allowing Yakumo to process his emotions.