Everyone wanting to be lil gumis favourite so he spends more time with them when he regresses, then doing the most twisted and disgusting things to him. It annoys Everyone how he's always stuck to gojo and is too shy to be with anyone else. But eventually he gets comfortable with everyone and they make it his nightmare. It being a coping mechanism his brain picked to relax his mind but it turns into something that drains him instead because of all the activities. Him growing to despise it and forcing himself to not regress because he's completely at everyone's mercy and they take advantage of it. But no matter how hard he tries it still happens, sometimes by its own or sometimes he's forced into it by others. Them creating triggers for him that quickly catch up to his brain. Telling him stuff like "wanna color together?" "Where is your Pacifier?" "Wanna cuddle?". And he hates it because its uncontrollable and everyone's just abusing it like its entertainment. Everytime he wakes up after regressing he feels more tired than better which just makes him regress even more. He complains to gojo about it but he only tells him "I can't always be with you". He argues how gojo just used to lock him in a room with his stuff if he had to go somewhere instead of leaving him with others, but he's just reminded of how he hurt himself like that. But he has no idea that injury was intentionally caused by gojo himself to gaslight him into believing he can't be alone.

Bruised up megumi on verge of death. And im not talking a few bruises or a stab wound. But like in a horrifying state that'd make anyone question- what happened to him. One of his eyes damaged badly, like it was stabbed with something sharp. Blood running down on his face from his eye continously and he's unable to open it. A broken wrist and few broken ribs. His clothes torn from places where hes bleeding. He has a hand on his side where there's a barbed dagger looking something stuck in him. He can't pull it out because its stuck there and pulling it out will be excruciating. And he has no strength either. One of his leg slashed badly, almost cut in half. His head bleeding from behind like his skull was bashed into something. His lip is also split open, bleeding. There's burn marks on him that look fresh and a deeper slash on his chest. Him barely hanging on somehow, leaning against a wall trying not to make much movement. His ears ringing and eyes burning from the excruciating pain. He gulps, breathing from his nose. He cant talk. Can't move. Can't even cry. Wishing for death at that point because that will be better than the situation he's in. His body trembling uncontrollably as he sobs occasionally, it sending shocks of pain through him everytime. Then he hears footsteps inching closer, it makes him panic real bad. He wants to cover his mouth. But one of his hand is entirely useless while other hanging on the dagger. If he lets it go it will loosen and he will loose more blood. Hes already sitting in a pool of his own blood. His pelvic bone is probably broken as well, and he's probably bleeding internationally from somewhere as well. He knows he will he dead in a few minutes anyways, so he just closes his eyes and throws himself to the side to lay down, a gasp leaves his mouth when he hits the ground but he's too dizzy to react much. And he faints. Or dies.

Vampire gumi and he thinks he's sly. He lures men in and sucks them dry in dark alleys or cheap motels, the venom leaving an aphrodisiac affact which makes it easier. Then he comes across a teenage boy whom he makes his easy victim. He's super dumb so megumi doesn't even try to play around. Just drags him in a dark corner and bites down on his neck. He's 3 gulps down when he choked real bad because he had a dagger stabbed right into his heart. He coughs blood and stumbles back a little, mouth gaping stained with blood, fangs out and eyes tearing. That was a hunter. Hes about to turn around to run, but the boy grabs the dagger and twists it at an angle it makes his vision blank. He falls to the floor, scooting away with all his strength but the hunter steps right on his chest, pushing the dagger deeper and watching him cough up his own blood and beg him to let him go. Maybe he doesn't kill him and just takes him home, keeps him chained up and just fed enough to keep him hanging between life and death. With silver chains around his neck, arms and feet. Burning his skin constantly.

Child bride gumi yum
Hes so small he can barely understand things. Walking behind his husband wherever he goes, he stumbles and falls sometimes Walking quickly to catch up with his husband because he walks fast leaving him behind. Hes just a kid but he has to follow the clans rules and traditions. He can't eat untill his husband is done with his meal, so no matter how hungry he is he just stands behind him and waits, sometimes cries from hunger even. He can't really do much for him because he's too small, he learns to do chores from the others but always messes up so he always gets scolded over everything. His little hands being bruised and injured with blisters from Washing clothes and sewing. The needles always make him bleed. Then at night he has to be super quiet and behave extra well so he doesn't piss off his husband whos always so cold and he never understands why. Sometimes his husband brings other people in their room and makes him wait outside. He dont know what they do inside but he finds his husband half naked after the other person leaves and everytime they do that, he's extra mean to him for some reason. He has no idea his husband is so mad because he cant wait for him to grow up enough to serve him in bed.

Toji being absolutely ashamed and disgusted of his son because he's an omega. They live in the zenin clan where he knows how they treat omegas like trash. He doesn't let megumi leave the room all day, lets him go nowhere. He let him go to school till 10th grade then he just locks him at home. All day he just sits in that one room, he'd be super depressed cuz he practically does NOTHING all day and cant even wander around because of how disgusting everyone in the clan is. Everyday he has to deal with his father glaring at him and cursing him out for being a burden on him. "What do i do with you?". Even tho he has no empathy for him, he could throw him to someone in the clan to do whatever with, but his ego wont let him. They already mock him everytime he sits with them, he don't want to watch these bastards drag his son around like a slave.

He gets megumi suppressants and tells him to take high doses to avoid heats because that's the only thing holding back everyone from practically drag him out of there. Then gojo kills him and he tells him to do whatever with his son. Gojo arriving at the zenin clan to find the said son basically half naked and about to get deflowered in the open grounds.

Age regression but not the typical stuff. It being the result of stress and anxiety, and whenever it happens Megumi goes quiet. He doesn't understand anything and goes completely nonverbal. And very sensitive. Gojo being the only one he's used to, nanami and shoko maybe. Each time it happens, He'd go silent and just stare at one thing and gojo would know. He'd want a stuffed toy to hold, have a simple meal and just sleep in gojos bed specifically. For the first few times they tried making him talk, but he never did. So it just became like that. But then yuji and nobara came along which made it complicated. The first time it happened, they told gojo hes being weird and not talking to them. And when gojo arrives at the scene, he finds a very frustrated megumi who walks up to him the moment he arrives and hugs him then cries in his chest. Nobara and yuji being absolutely weirded out by his behaviour and attacking them with questions. Their normal tone pretty much sounds like yelling which throws megumi more on the edge. So gojo dismisses them and takes megumi to his room where they change his uniform and hes finally hes in bed with his toy and favourite blanket. Maybe a pacifier.

But gojo isn't so nice so maybe he waits all week for him to regress to take advantage of him. Cuz its more fun when he looks confused and terrified, and can't even talk to say no. Cant fight back either. And the next day megumi wakes up clueless of what happened because he never remembers anything.