Hmm. What if. An mdzs au (definitely the book, not the show) where timelines diverge when a small, angry street kid with a missing finger and a desire to watch the world burn makes his way over to the burial mounds, because fuck it, he’s going to learn from the yiling laozu or die trying.
I have put no consideration into this whatsoever, and I know coherent timelines are the hardest part of involving Xue Yang in anything, but I think that if Xue Yang is like, a preteen, the other parts of the timeline may still fit into place? Honestly, I don’t really care if they don’t, I’m just also too lazy to check this very long book for the specific empathy flashback with the details of Xue Yang’s jinlintai cameo. If he has to be a few years younger than canon allows, it’s all good, baybee, cql fucked the timeline so I wouldn’t have to!
But anyways, consider a young Xue Yang, who’s not really old enough to be making his way in the world as a rogue pseudo-semi-cultivator, but is old enough to survive the attempt and learn more cultivation as he goes. And he doesn’t have family or money to back him up (not that those would have made an impact on Wei Wuxian), but I think he’s aware that he has extremely grand ambitions for someone in his position, and is very cheerfully willing to take risks to achieve them, even knowing that his odds of success are low and his odds of dying are high.
I’m thinking that he reaches Yiling, however he gets there. He sees the knockoff Yiling Laozu apprentices (and is Full of scorn), he sees the wards Wei Wuxian has raised around the Burial Mounds, and he’s not all that trained and is mostly self-taught, but has just enough raw talent that he manages to bust in through the wards himself.
I don’t want to try sorting out the exact details of how he convinces Wei Wuxian to let him stay, because this idea popped into my head like, legitimately thirty seconds before I started writing the post. But I don’t think it would hurt the Wens to have another pair of helping hands, I think Wei Wuxian is weak against children in general (especially children who are trying to learn a thing), and I think he’s also weak against a street kid struggling on his own in the world (and Xue Yang is smart enough to lean into the look-pitiful-to-gain-sympathy-points angle)
Additional point one: Wen Qing can look at his hand and his health in general, and I think Xue Yang could benefit a LOT from having a big sister in his life
Additional point two: Xue Yang would think that Wen Ning is the coolest thing, and it would benefit me emotionally if he sees Wen Ning as his super cool older brother and not as a fascinating science project he wants to copy on Song Lan later ;u;
Exact events would vary based on when Xue Yang made his arrival (before or after Wen Ning wakes up? before or after Lan Wangji visits Yiling? etc), and I would have to consider that carefully because I do want canon to diverge, and Xue Yang dying with the Wens would be so fucking tragic (kind of in a fascinating way? we the readers know that it prevents future atrocities, but here, he’s a different person than the one who committed those atrocities, and it’s like giving him a family only to have it yanked away (so, canon), but this is a tangent because I have to emphasize I have not plotted out anything)
I don’t know how I would want canon to diverge is part of the trouble. But like… one of my first details on the book that really, really got me good is the way that Wei Wuxian is superficially cheerful but is also poised on the edge of having a really rough time early in the book. After he casually tells Jin Ling ‘lmao, what, you didn’t have parents to teach you manners?’ he goes off on his own to have Regrets. What really starts pulling him out of his funk is when the kids need protection and education. And he thrives! Even when he’s roleplaying Mo Xuanyu, he’s in his element as an experienced cultivator helping guide the juniors to a solution so that they learn for themselves, but also ready to be a safety net so they don’t die in the process!
A-Yuan plays a little bit of this role for him in the Burial Mounds, but like… he’s a toddler, and is both too young to be taught at the level and depth that Wei Wuxian adores, and is yes an adorable sweet kid, but also exhausting and demanding in the way that all small children are. You can’t just put away a toddler and lay face-down on the floor for a week, even if you want to. Yes there are other people around to help, but everyone is working really, really hard just to survive in the Burial Mounds.
So. Give Wei Wuxian a preteen! Give him a kid who is saying ‘take me as your apprentice, gege, i’m gonna keep studying demonic cultivation whether you help me or not uwu’ and let Wei Wuxian convince himself that okay, stupid adults are free to do stupid shit and he isn’t responsible for them, but maybe he ought to keep an eye on this kid to make sure he doesn’t accidentally die trying to learn Wei Wuxian’s methods. Xue Yang is smart, quick, and demanding, but also capable of independence. It’s ideal. Give Wei Wuxian a kid to teach, give me them passionately arguing about theory, give me Xue Yang reading all of Wei Wuxian’s manuscripts, and forcing Wei Wuxian to engage a little more with the world around him instead of sinking down into himself. Give me Xue Yang still young enough that he can be convinced to trust the idea of a family. Give me Lan Wangji accompanying Wei Wuxian back to the burial mounds and Xue Yang trying to be all ‘hey, you’d better step off if you know what’s good for you’ and being ‘!!! >:O’ when he finds out Wei Wuxian let this stranger hold A-Yuan and it being the cutest thing ever. It would be so good for my heart, but my god, am i unequipped to write it.