Okay, so apparently two people actually liked this so it's a sign for me to reblog it with a brief explanation of the AU
Basically what went down here is that after the good ending, the Three Great Creatures wake up in human bodies they don't recognize, not remembering their past lives. They manage to meet together in the Neighbor's room to realize they are the only remaining living beings in all of Headspace. They have to traverse through the dream world to find out about what happened, who they were before, why they are the only survivors and the fact they aren't real in the first place and only exist within the Dreamer's head. (I headcanon that they were aware of that before "The Great Reset" which was when Omori left Headspace for good after the good ending, but don't know about it anymore due to their memory wipe.)
Kiiro Nekomata: Kiiro was inspired by Makoto Naegi and Keebo/K1-b0 from Danganronpa: Trigger Happy Havoc and Danganronpa V3: Killing Harmony respectively and also has a bit of Pure Vanilla Cookie from Cookie Run Kingdom in him. He is kind, helpful and caring, taking the role of the "leader" within the group. He struggles with an identity crisis and self-worth issues, hence the fact that throughout the story, he keeps remembering a figure called "the Dreamer" whom he had to protect and he feels like he failed that task. However he still manages to stay positive and masks his problems with a smile and a cheerful personality. He can be a bit forceful at times, but he's doing everything for the good of his friends. His name, Kiiro, means yellow in Japanese. His surname is Nekomata, which is a figure from japanese folklore - a cat with a forked or split tail. I chose this name because of his relation to the Loquacious Cat, which will come into play when the group ventures to Black Space. What's important is that Kiiro is afraid of death and anything related to it, and the Loquacious Cat will answer his questions such as "What's going to happen to Headspace now? What are we? Will we disappear too?" further increasing his anxiety when answering since the answers are not anything that Kiiro could make sense out of. Nekomatas are commonly associated with death and control of the dead, which is something Kiiro wants nothing to do with but is still curious about. I don't know if this makes sense, it's 7pm and I'm rambling.
Hyde Del Mar: My initial idea for his character was inspired by the Hitchhiker who takes us to the Abyss. My thought process for this is kind of hard to explain, I just found they are both similar in sense of demeanor and comparing the fact that the Hitchhiker takes you to a place like the Abyss but doesn't actually interact with Abbi or venture deep into the place and the fact that Humphrey just happened to have an entrance to the Map of Truth behind him but didn't actually do anything about it sort of seemed similar to me. Combine that with the sailor from the Hungry Humphrey book (I happened to have the same idea as @pinkalliums ) and throw in your "mad scientist" stereotype and that's basically who Hyde is. He is the same comedian we all know, easily bored and seeking entertainment everywhere. The main thing I changed about him is basically the fact that in canon, he's basically ignorant of everything as long as he's kept satisfied. In my AU, this ignorance was taken from him. He craves knowledge and answers to all the questions he has since waking up in his new body. Does he miss his blissful ignorance? Yes, that's one of the only things he remembers from his past life, but he can't really do anything about it because his need to get to the bottom of things is simply too strong to ignore. His name Hyde came from the Humphrey OST "H2O:HCl" as HCl is called hydrochloric acid. I just thought it was a neat Easter egg. "Del Mar" is pretty self explanatory, I think (Of the sea).
Abby S. Kurokawa: Abby was a character I struggled with most. I ended up writing her into a tragic character. She knows she knew something, she remembers she used to know the answers to all the questions the three of them are so desperate to find answers to, but can't for the life of her remember what it was. She also remembers she missed someone deeply, but can't remember anything about them. She beats herself up for not being able to remember anything and being "of no service" to the other two. She doesn't want to cry because she doesn't want the other two to keep worrying about her, but she just can't stop herself from sobbing due to her constant misery. Despite this, she doesn't lack courage or willpower - in fact, she is determined to do anything in her power to help herself and her friends discover the truth about everything. During Black Space sections, she is more composed than anywhere else, because the place reminds her of the Abyss, which is one of the only things she remembers. She is a great help to the group during these sections. In spite of her outer demeanor, she stays hopeful throughout the situation and even sometimes scolds Hyde for his sarcastic remarks. She always hopes for the best in every situation. Her name is stylized with a Y instead of an I and has a S. added after it (which stands for Seraphina, inspired by the angelic beings Seraphims to indicate her once close relationship with Omori, the "god" of this universe) to make it resemble the word abyss. Her surname, Kurokawa, translates to "black river". I chose this surname because it reminded me of the Abyss in general.
these three are my blorbos and I can rant any day about them