Eunoia

Eunoia is a passive NPC in Ten-Mou, Fissure Outpost, and the Closed Mall. She herself does mostly nothing, as it is the shop buttons that you purchase items from. However, she has certain traits about herself other than her shop that make her interesting. She is also nettable, but only when using the spin move of the Shiny or Golden Net.

Firstly, Eunoia gives off a large amount of light, in a small radius around herself. She also looks awfully like a Chaser, raising possibility of connections with Fissure Corps, which is cemented not only by having a shop IN an outpost of Fissure, but also the video "Eunoia Has Connections", which displays the phrase of the title alongside mafioso roaming Graveyard Sea. This raises a large amount of questions as to who's side she's on, if she's on any side at all..

Another thing to note is that Eunoia clearly exists in multiple places at once, or there are multiple Eunoias, seen in the Closed Mall. This could mean Eunoia is some sort of hive mind, has been cloned numerous times, or has some sort of quantum physics-bending capability.

One more thing to note is that she addresses Shudras, in the main canonical dreams. This implies that she likely has some sort of meta-knowledge of Epic Department or the player, or that Epic Department exists within the story of Dream Game.

According to Wikipedia, the word Eunoia is described "the goodwill a speaker cultivates between themselves and their audience, a condition of receptivity. In Book VIII of the Nicomachean Ethics, Aristotle uses the term to refer to the kind and benevolent feelings of goodwill a spouse has which form the basis for the ethical foundation of human life.". It could be that Eunoia is a stand-in for the creator or development team, without being directly representative of them. A figurehead, you could call it. This would explain the breaking of the laws of physics, and the meta knowledge, without rendering the other points unexplainable, as she still exists as a character within the story.