One thing is sure, the first route of Dies Irae (Kasumi) is very slow and even tiring, only valid for the end of the route. However, the rest is a CHUNNI EXPLOSION that screams Nietzschean philosophies at every turn. Everything in the work revolves around an ABSURD metalanguage about Also Sprach Zarathustra, which I believe is magnificent. And yet Dies Irae in my view is best apprehended on an emotional rather than an intellectual level. Hunting for connections between the book and the game can make you lose the immersion, and at certain moments, the chuunibyou of the work is so explosive and certain resolutions are so forged in how Ren "just doesn't want that result", that this whole Nietzschean theater that screams the values of the book in your face is simply secondary compared to the emotions that the work gives you, without any relation to the book, simply for being what it is. Consuming Dies Irae is attesting, by x + y, Nasu's influence, because honestly, this is almost another Nasu writing, however with much more freedom to explode things on your screen. It's wonderful and I've never seen a universe as rich and ingenious as the Masadaverse since the Nasuverse. Masada deserved more recognition and greater support for his works, very sad that to read his other works, just by fan translation or studying Japanese, which honestly, for this man's work is worth it, but as he uses archaic Japanese it is even more laborious. Masterpiece.