SVSSS!Sibling Transmigration AU

SVSSS!Sibling Transmigration AU

Based so very loosely on this glorious art by @nibbelraz

Airplane transmigrates into the youngest infant son of the Shang family (and God damn he deserves better than this System he is their god!! Daddy Airplane?? Heard of him?? These people should not be changing his damn diaper hello??)

Shang Qinghua is already a young disciple when he visits home and meets his little brother for the first time and does no one else see there is something... off about this kid?

He makes regular trips home afterwards, eventually using An Ding logistics to find reasons to be near his hometown more frequently (and really does no one else see this kid is weird?)

Bby!Airplane is just too smart. SQH is convinced he saw the kid make eye contact with him once when he caught him stealing a dumpling behind their mother's back and it was like looking into the eyes of a demon who'd gut him if he snitched and not a human toddler

It doesn't get better as Airplane gets older and SQH hears him muttering about 1. things he shouldn't know at all regarding the sect when he thinks SQH isn't listening and 2. absolute nonsense (what System has done you so wrong didi?? you are four??)

Before Airplane is old enough to reasonably join the sect, SQH brings him back to the mountain anyway. He is fairly certain his brother is a seer and if that's the case, he's keeping the little welp close at hand

Airplane infinitely regrets how much bullshit he made An Ding deal with to ""hand wave lazy writing"" (shut up peerless cucumber!! he was writing porn not project management!!) but even just watching SQH run himself ragged over the peak has bby him exhausted (no wonder he ratted y'all out to the king yeesh)

He spends his early years as a disciple just following SQH and sometimes nudging his gege into record shattering discoveries because SQH will pat his head when he realizes and take him down the mountain for noodles afterwards (gg easy)

Airplane is a proper disciple in his own right in his teens when his notes and his story get jumbled in a way that has him tripping into one of his shixiongs when he hears the rumors - Head Disciple SJ returned to the mountain with a little brother (record screech glass shattering huh???)

Meanwhile, Shen Yuan transmigrated into Shen Jiu's unnamed younger half-brother After finding stability at the sect, Shen Jiu looks into his birth mother, knowing she sold him off when he was a child What he finds in Airplane's unwritten notes is a Fantine-Cosette backstory where his mother, a courtesan, gave him away to a good family after he was born. She sent them regular payments to ensure his care, but only found out when she was pregnant with SY that they had sold SJ off and were pocketing her money Unable to find SJ and unwilling to risk SY, she and the other courtesans raised SY within the brothel SY transmigrates into the body of a child at his sick mother's bedside with a twisted sense of deja vu having just vacated his own deathbed He doesn't know where he is, but if the orphan protagonist can make it to the sect, so can he right? (Transmigrator Halo? System? System why are you laughing??) He's barely into his second teens when SJ finds him. It takes no time at all after learning the truth for SJ to demand SY's guardianship and whisk him back to Qing Ding (See System? He DOES have a Transmigrator Halo, even if it is attached to the scum villain) SY is honestly shocked by how concerned(?) SJ is when packing his meager possessions. (No Jiu-ge (ew) no one has ever harmed him or touched him wtf would make you think they had?? He's baby??) It takes some time for glaciers to melt and for SJ to let SY in, but SY was raised around kind jiejies who taught him to be better than their worst clients and SJ feels safe around this little brat in a way he can't explain (SJ has had SY for five minutes but if anything happens to him SJ is taking out the entire mountain and then himself) YQY has NO idea how to react when SJ first returns with his brother, but he doesn't hesitate to smooth the way for SY's discipleship and watches from afar as SJ begins to finally let someone in, even if it's not him

SQH keeps telling Airplane he needs to work on his muttering to himself, that it's going to get him in trouble (bro you don't even know) but for once it's in his favor because SY overhears him just enough while YQY is sorting his shit out on arrival and suddenly they're just two spidermen pointing at each other on the peak

Cue the shenanigans of two hometown boys who have no bearing on the plot at all and are just along for the ride while their siblings handle the peaks. Anytime Qing Ding and An Ding need to work together on missions, these two volunteer and confuse the hell out of their martial siblings every step of the way

SJ does not trust the little logistics rat anywhere near his didi and glowers like an alley cat anytime Airplane is around (SQH is right, ofc. His brother IS weird and SJ does not trust it)

SQH meanwhile takes note of his weird didi's sudden and first friendship with SY and immediately starts keeping tabs on this kid because clearly Airplane's seerhood has steered him to SY for a reason, must keep note

The first time LQG makes any sort of fuss about SJ going to a brothel, SY forgets everything he's learned at the sect as Little Brother Mode™ activates to defend not only SJ but his jiejies too. (Fists are thrown. Hair is pulled. He might have bitten his shixiong, he can't say. He sort of blacked out for a minute there) Needless to say there isn't a second time and LQG has an hour long argument with his shizun about trying to poach SY for Bai Zhan peak while nursing a black eye (Airplane just side eying the GREMLIN that transmigrated here like bro wtf)

Before LBH even steps foot on the mountain, both their Systems ping about the incoming protagonist and it's not that they, you know, forgot about the story but they were distracted. Between finding each other and actually weirdly coming to care for these NPCs they... lost track of time

But the System pings and LBH enters the scene and SY refuses to let Airplane's work repeat itself (we're making your notes canon bro stfu and follow my lead. (what lead??? what plan??) I'm working on it!!)

It's a 50/50 crap shoot if SYs favoritism of bby!Binghe endears him to SJ or spikes up the resentment, but SY refuses to let harm come to LBH or for SJ to become the scum villain (someone is yelling, it might be SJ, it might be SY, it might be Binghe who doesn't want Shizun and Shixiong fighting over him)

On the other side of the plot, SQH is still a little snitch, even with his didi's visions guiding him to unprecedented success - but it's more than betraying the sect, more than wanting power and recognition. Seers are insanely powerful, highly sought after. Bringing Airplane to the sect protected him for awhile but SQH can't let him become a target. So when the OG meets MBJ, all his calculations come to a single unfortunate answer: throw your lot in with the biggest fish to protect Airplane (no one else can understand how weird his brother is because if they do his brother will end up dead)

Flash forward to when Airplane is squinting at his brother wearing fur collars year round, always running a little bit chilly for unknown reasons but refusing to see MQF about it. Airplane insists on SQH letting him check his meridians if he won't see MQF and SQH relents, puts his wrist in Airplane's hand, and squawks like a goddamn chicken when Airplane yanks his arm and tugs down his collar to reveal the mark of MBJ on his collarbone and SQH is once again met with that dead eyed 'bro do not fuck with me' stare

SQH does not question how Airplane knows, he just insists on Airplane staying far far away from MBJ (he might work for the demon, but he certainly does not trust him)

Of course Airplane defies all reason and knows the exact secret rendezvous point SQH uses (he did not suffer puberty twice to be denied seeing his most precious creation in the flesh, gege) and is spotted spying on the spy almost instantly by MBJ who is just holding him by his scruff and looking between a wide eyed Airplane and a barely-restrained-panicked peak lord like 'why oh why are there two of them'

Cue a full stand off between a demon and peak lord, ice knives at SQH's throat, a blade hovering at MBJ's heart, and Airplane just held like a kitten between them like fuck fuck fuck fuck fuck that SOMEHOW ends with MBJ rationalizing 'ah this weird mouse is important to my viper of a spy - if I want to keep the viper loyal, I will protect this mouse'

Which throws the Sheng brothers into a mess that neither of them know how to deal with. SQH thinks he needs to continue to be excessively useful to keep Airplane safe. Airplane can't let MBJ know he's his brother's best source or the demon might cut out the middle man. (Meanwhile somewhere MBJ just out here planning to court this weird little mouse to tie SQH's loyalties to him)

Whatever circumstances causes the Abyss plotline to trigger, SY 500% throws himself in after Binghe leaving SJ partially feral because his didi is in danger, Airplane CONCERNED, and SQH just casually like 'oh that's why my brother was interested in him, interesting' not at all realizing no, SY is likely just about to become his boss(-brother-in-law)'s boss's consort - whoops! whoops! whoops!