The Moral Philosophies that Center Shin Megami Tensei III: Nocturne

In Shin Megami Tensei III: Nocturne, the world’s halfway over and a new one is struggling to be born. Tokyo is a barren wasteland contorting spherically around a shining orb called Kagutsuchi, and the streets teem with demons. There’s little humanity or hope in the Vortex World, a transient place where the planet awaits recreation. You aren’t even human anymore; to survive the horrors of the apocalypse, you’re granted a half-demon form and act as the prophesied Demi-fiend, an agent said to assist a human in bringing their vision of the next world to fruition.
That’s exactly what sets Nocturne apart from its predecessors: humans will decide what the new world order looks like. In Nocturne, notions of alignment are thrown out the door in favor of Reasons, philosophies for how the world should operate that will be judged by Kagutsuchi after obtaining a divine sponsor and climbing its tower. Demons (including half-demons such as yourself) are expressly forbidden from forming their own Reasons. This directly contrasts how alignments manifest in Shin Megami Tensei—though the Law Hero and Chaos Hero represent their respective paths, they are bidden along by unseen interlopers like the archangel Gabriel or Lilith. These beings are disallowed from interfering in Nocturne; each Reason’s representative came up with their philosophy internally, and fought to legitimize it with their own strength.
Essentially, each Reasonmaker—Chiaki, Hikawa, and Isamu—form their own cult. The philosophies are driven by a populist mindset, with beings rallying behind them like small armies to assist in the obtaining of Magatsuhi, a spiritual asset that must be amassed to summon a Demonic Sponsor.
The cavalcade of demons that follow each of the Reasonmakers further conflate the series’ traditional alignments. Chiaki’s Reason of Yosuga envisions a brutal world beset by Social Darwinism. Her followers are predominantly angels who flock to the Mantra Headquarters after she acquires power from the late Gozu-Tennoh, a demonlord who revelled in “chaos” and opposed Hikawa’s Reason. Chiaki’s divine followers are at odds with her seemingly chaotic worldview; she yearns for a world untouched by outside forces like social safety nets or welfare and instead vouches for a world ruled by supposed natural selection. She also subsumes Gozu-Tennoh’s more “chaotic” followers—oni and other hellish beasts.
Chiaki’s Reason could suppose, instead, a more capitalistic world. Chiaki comes from a well established family and seemingly struggles with little until she survives the Conception. Suddenly down on her luck, Chiaki resolves to create a world where only “strength” prevails. She defines this as those that are resourceful, quick-witted, or powerful enough make it through while the weak fizzle out, and also cites overpopulation as a key factor in why the previous world needed to be destroyed. What Chiaki fails to realize is that a world of Yosuga would also be devoid of privilege; it would be a world where every person would constantly have to watch their own back and rely on themself alone. It’s a world of distrust.
Hikawa, along with your teacher Yuko, is the one responsible for the Conception. His affluent, shadowed past would indicate him as a chaotic agent, and his use of Goetic demons would further align him with the Ring of Gaea who represented the chaos path in Shin Megami Tensei. We learn from the Lady in Black that Hikawa was indeed in the Ring of Gaea, but he turned his back on them and sacrificed them to demons to enact the Conception. The Ring of Gaea, along with their law counterpart the Messians, are all dead by the start of Nocturne. In other words, both the potential for a world of law and a world of chaos are nonexistent. Both cults are left to moan in the Amala Labyrinth while the Reasonmakers fight in the Vortex World.
Despite his nefariousness, Hikawa’s Reason of Shijima is really not all that bad. A staunch anti-individualist, Shijima is a Reason of “stillness”—a meditative world where there is no conflict but also no passion. Hikawa’s world would be classless, stateless, borderless, moneyless; in essence, he imagines a perfectly communist world, in which every divide between people would be eradicated. Though Marx might find Hikawa’s egalitarian leanings bourgeois, Shijima certainly mirrors some of the eudaimonic intentions of Buddhist philosophy.