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Oh! I just mean you can make souls, I don't think you can actually make a soul for yourself. Probably everything that can think has a soul anyway, right? But I know someone who was able to make artificial souls that you could put into things and make them come alive! Shinigami use them sometimes when they're in fake bodies on Earth, because when they have to leave their fake bodies they put artificial souls in them so no one notices they're gone, only usually they have wayyyy different personalities than the shinigami so it's still kind of weird.