Salutations!
Alrighty I gave your story a read and I've compiled some feedback for you!
So, to start with: Your Prologue. This is the introduction to your story, so it really needs to hook your audience. Unfortunately, it was a very large info-dump that didn't provide context for what came in later chapters, it was just a long rundown of the world's history. Now, I understand wanting to get all that stuff in there as best as possible, and having a storyteller start off the story isn't the worst way of doing that. However, I'd rather learn about these things WITH the characters, rather than having it thrown at me all at once.
It takes the mystery out of things to have it all explained. I like to FEEL the wonder of the characters as they realize the kind of way they live, how their world works, I want to feel what they feel when they make discoveries. In the case of your prologue, I just 'feel' like I've been in a lecture for twenty minutes. Now, all that being said, this is very endemic of first drafts. You want to get all your ideas out there as soon as you can so you don't drop them or forget something important, and that's okay! Literally EVERYONE does this at first, just get it on the page and re-arrange later. So, don't feel bad, it's all part of the process.
What I'd recommend to you, if you wanted to start with something, start with the Argreion and his wife. Maybe even start with the tail end of the story as he's talking to the kids before his wife shows up. I was more interested in the story when Argreion had someone to talk to that wasn't himself or the kids, because we'd finally be stepping out from under all that exposition. Unfortunately it didn't last long before we were being TOLD more details, rather than being shown. My suggestion is: get rid of the exposition and have us learn these facts about the world naturally, and not being told by a mentor, or told by a parent, have your character discover it, the discovery will make all the difference. (It doesn't preclude him from asking a mentor or receiving answers but, having all of this just dumped on you from the outset is a turnoff for a reader).
This brings me to another issue: Are you, the author, IN the story, or not? The reason why is because you keep breaking voice to talk to the audience. Is the story narrated, or not? As sometimes you'll be going along and again, breaking voice to make sure you're audience is listening and it's very distracting. I actually put your novel aside four times and worked on something else, because the breaking voice reminded me "Oh, I need to get my coffee going, Oh, I need to get those dishes done" because you provided me with the out and it was hard to make myself sit down again. This is not something you want your novel to do, as it essentially tells the reader: "It's okay to put me down." I'll also say that I find it impolite to a reader, as it gives off the air that you think your audience isn't smart enough to get subtle clues, so you as the author have to come in and nudge them. Now, I don't think you did this on purpose or with malicious intent at all, however, it really does feel like you're hand-holding your readers, rather than letting them draw conclusions on their own. You're telling them how to feel, rather than letting them feel, and this creates a problem, as most readers don't like being told how to feel about something. They want to make up their own mind.
This also leads into two problems which, I feel are more major: Drive-by-descriptions, and Passive Voice. Your work is rife with both and I'll explain. Part of the trouble is your use of -s versus -ed. You also tend to alternate between the two and it's distracting as a reader, when the author doesn't have a set narrative flow. (This breaks immersion.) Whenever you end your words with -s rather than -ed you instantly put yourself in Passive Voice. Now, if you're not certain what PV is, fear not! I'll explain: Passive Voice is what happens when you tell a story, instead of show one. I'll give you an example from your own novel, an unedited and edited piece, so you can see the difference:
Original: Red sits up from his bed, having just enjoyed a good dream. He stretches his arms up, yawns, rubs his eyes, scratches the back of his head, and notices the sleep lines on his arms. Damn. He must've really enjoyed that sleep.
He gets out of his bed, putting on a pair of those fluffy sandals as he does, and heads over to his bathroom. He washes his face, brushes his teeth, does more of his business, and gets out. Yeah it seems like a normal day, but Redd liked that, either way.
Edited: Red sat up from bed with a long stretch and a yawn. He rubbed his eyes and noticed the sleep lines on his arms. Must've slept pretty hard. He rolled out of his bed, slipping into a pair of fluffy sandals before heading to the bathroom. Like every morning Redd washed his face, brushed his teeth, and threw on his clothes. He took a certain comfort in the routine, mundane though it was.
In the original version, we're given a list of things that Redd does, whereas, in the edited version, we follow along with him. I was also able to take what'd once been two paragraphs and simplify them into one. Now, this is something that happens in the editing process naturally and when you get to that point, you'll likely be cutting down paragraphs a lot, like most authors do, so this is just some advice to hold on to. You have a habit of not only repeating your points from one paragraph to another, but you also repeat words within those same paragraphs, sometimes multiple times. (See how I bolded both times you said 'sleep' in the original? Sometimes in a single paragraph you'll repeat words like that three or four times. This hurts your narrative because the reader becomes aware of a pattern, and it's distracting.) You don't have to go thesaurus crazy, you just have to rework your sentences. In the edited version, I've said the same thing you did, and all I had to do was rework the paragraphs.
Now, we also ran into another snag with Redd's day to day. In Chapter one we have about three-four days where we follow him to the bus stop, we see him get on the bus and I thought we were going to go to school with him, being that, that'd be the perfect place to introduce some of these principals you brought up in your exposition. He meets kids from all over, different races, species, and he gets to find out how other kids see things, how the world is for them and learn about myths, science, etc. I was actually on board with seeing Redd's school day and learning the world from a natural learning place. Instead, we spend mornings with him only to have him come home and go to sleep and wash, rinse, repeat. I really liked it when he was getting up early for candy (as that seemed to me like it'd be pretty realistic for a kid, so I enjoyed that part) as I felt the story was going to budge.
In the beginning I just felt trapped in this loop of "He goes to school, he comes home, he goes to school, he comes home" until finally, I got to see his school day. I'll tell you something, chapter 4 is where your story REALLY starts. It puts us right in the action, he's made a new friend over a favorite candy, he meets Drass, and they rescue a girl from bullies, THIS chapter is where your story actually starts. Everything before this is filler that should be re-purposed elsewhere in your story to fill in knowledge gaps at appropriate times. Starting a story IN the action is how you hook a reader, starting us off in the thick of things, is how you grab our attention.
Having these kids meet each other, interact, THIS is where we learn about the kind of person Redd is, THIS is where we learn about the world, as they're literally in an institution for learning. Hell, it doesn't even have to be exposition here, either. Redd could have an assignment and be trying to figure out what to talk about, and you learn as he does, and so on. There's so much potential right here in this place and it all starts in chapter 4. I love how, when these friends come together, they start figuring out their dynamic, we start to see their little personalities blossom between each other as they figure out what kind of group they're going to be. THIS was your starting point.
Before chapter 4 I had NO idea that Redd was a bullied kid. I knew he was sensitive, but honestly I'd been given such a laundry list of things about him and no actual interaction with him, I had no empathy for him before chapter 4. You also don't get the sense that he's self conscious about the scars on his neck. He doesn't do self conscious things, and I'd had no clue about how he felt, just about what he did as a matter of routine. Here, in chapter 4, is where you shine. Where not only your writing improves but your story improves. We're getting to see him through class, how he interacts with his teachers, other kids, and we DISCOVER that he's 'deformed' (as his teacher put it) and thereby his lack of confidence.
When I'd finally become interested in learning about your character and his friends, you timed skipped to his adulthood without fleshing out his newly minted friendships, his relationships with his parents beyond snippets of conversations held over the years, growing a tail? Honestly from the way you started your story, I thought we'd be following a group of kids, and suddenly they're adults and I've no idea how Drass turned out, or how Naver'Is and his alien obsession went beyond social media snippets. You've literally stared your story over 4 times during the course of your novel and you keep bringing your audience back to square one.
Again, this DOES happen with first drafts, but it's very easy not to correct it, if you don't know that it's a problem. As a reader, I've had 4 false starts here and I've lost the empathy I was starting to build for Redd because he's a different person and I don't get to find out how he got there, since you started me off with him as a child. You need to decide where you want your story to take place, if you don't want to focus on his childhood, don't start with Redd as a child if you're not going to spend adequate time showing us why it's important or how it builds his character. Getting up and eating breakfast isn't character building, it's just going through the motions. Start where your story starts. By the time I got to chapter 10, all of the things we'd learned about Redd up to this point (such as his day-to-day doings during childhood, how he made his friends, the candy he liked etc.) were all moot. There was no need of them and so reading them makes no sense for a reader. (Especially because of their brevity).
It all got skipped and now he's off to college. (Also, Assassin's Creed? Your story said it was a world like ours, but not a parallel Earth? In your prologue you said it was bigger, and every place was so different and far apart that they were practically their own planets. You might want to establish if it's just another Earth from a different dimension in your description so your audience knows what to expect) So, is college going to be where his quest starts? If your answer is no, you might want to rework your novel to start closer to when the quest begins. I'm not opposed to build up, but so far in your story there's been a lot of info-dumping and no build up.
Now, like I've said, this is something that happens with first drafts. You get the story down onto the page so you don't forget stuff, just to get it written, and that's okay! It's just the writing process and everyone goes through it. The troubles with your novel are NOT exclusive to you, so don't feel bad that you have them. We ALL do it. However, not knowing about them is the bit that'll get you every time. And I will say, you DO have some writing chops. Whenever you built a scene or you had characters interacting it was great! Redd interacting with his parents, to see how much they loved and worried for him, that was great. Argreion's interaction with his wife was sweet. You're GOOD at interactions, and that's why it's such a shame we miss out on so much of it when you switch timelines and push ahead. I don't get to see these three kids forming their 'Three Musketeer' like bond on the playground, or doing things after school as kids, because you've moved on already.
You've got a strong sense of character and you're also good at making distinct ones that I can tell apart, which is great! You have incredible potential and so too does your story. To that end, I've some things for you to help you edit and make your writing chops shine! First: (my favorite tool) Editminion! This will help you identify weak prose, words that don't work, homonyms, Adverbs, etc. It can help you sure up your story.
Passive Voice. This article can help you identify instances of Passive Voice and how you can fix it.
How to start your story. This will help you determine how best to start your story so that you're in the action, in the moment, and not starting too early! Purple Prose. This will help you to understand that, in some instances it's great to be descriptive, but being overly descriptive can be just as bad and identifying where to put your powers to good use is key.
Phew! Sheesh, this was a long one. I hope that what I've been able to give you feedback on helps you in your editing and writing process. I hope these resources help you make your novel awesome. Your start might be rocky, but so is everybody's! And just like all the other writers you know, you'll have to trim down here and there, and sure up here and there. You've got the ability and a good basis down, so there's no doubt that you'll make something cool! I wish you all the best. 