Kara's put into foster care but 1 day a few years ago she disappeared too. Some of the criminals that got released started coming after her. She goes to National City under the alias Kiera Enal courtesy of F.B.I. Agents Hank Jones & John Henshaw. They decide to get her a job at St. Edmund's Prepatory as the new Science teacher; when she gets acclimated there she becomes a hit with because she's nice/laidback & others like her because she's super hot & one such student thinks both of these; the person who thinks this' a 13-year-old green-eyed & brown-haired young man named Carter Grant, the youngest son of Cat 'Queen of All Media' Grant. He ends up getting his hopes dashed 1 day when he realizes that his teacher likes the ladies; this happens after school when Cat picks him up from a tutoring session. When Kiera sees his mother she introduces herself & after that, she says that he overhears her whispering to herself that Cat's the most beautiful creature she's ever seen. After that, he leaves with his mother but not before he catches them locking eyes extremely strongly, with that he shakes his head & he waits for his mother to get in the car too. That night both women go to bed thinking about each other, meanwhile, it comes to the attention of Henshaw & Jones, from an anonymous source, that the worst of the worst criminal that Kara's mother put away, Michael Genzod, escaped from Stryker Island Penitentiary & he's on his way to get her but for now the men decide not to say anything; that weekend Kiera decides to take a break from grading papers to go to the park where she meets & makes friends with the Luthor twins, Lex & Lena, where they spend hours talking & later they ask her if she'd like to go out to dinner which she says yes & they decide to go to Edges where later the owner, Morgan Edge, hits on Lena but Kiera comes to her rescue which causes him to swiftly leave where both Luthor twins say thanks & they drop her off at her apartment where she finds her pets, Krypto & Streaky, strangled which makes her realize that people've found her & after this revelation, she calls on associates of her mother's, Bruce Prince & Diana Wayne & after this, she calls Hank & John to tell them the news. Both men come over to her place where they get introduced to the other ones where the F.B.I. agents decide to mix up the 2's names where they become Bruce Wayne, a Karate instructor who ends up having Carter in his class where Later Carter gets suspended from school because of using it in a fight & Diana Prince, St. Edmund's Prepatory History teacher. Also during this time Kiera & Cat're having lunch together, Kiera came over to the Penthouse to check up on Carter, when the younger woman asks Cat out on a date but the older woman says no because of the age of the younger 1 but Kiera informs her that she'd turned 18 4 hours ago so Cat says she'd love to go on a date & with that they make plans for 2 days from now where they find themselves at the Crystal Palace where they order food that includes caviar & champagne, they stay there for a few hours until they decide to go for a romantic walk & after that they find themselves at the Iceberg Lounge, Spa & Hotel where they spend the night; after said night ends they become a couple which excites Carter although not everyone's excited mainly Carter's father who also happens to be Genzod's long-lost brother & he also doesn't like it because he'd been hoping to get back with Cat but now he can't as well as it not looking out for Kiera, either, because he ends up finding his brother where they decide to team up with Lillian Luthor who just so happens to be the mother of the Luthor twins.
She helps them because she owns the older Genzod some substantial support & they end up bringing about a rift between the lovebirds by causing a head-on collision with Cat's Mercedes which causes Kiera to lose the ability of her legs where she, later, wakes up in the hospital to ask what'd happened & the staff tells her whereupon she bursts into tears when Cat comes into the room the younger 1 remembers that the older 1 caused this so she ends up breaking up with her, Kiera asks for Lena & the said Luthor shows up to take care of her, over the next few months they fall in love & becomes official. Also during this time Cat begins a new relationship with Carter's father where the older man introduces his brother Mitchell to the Grants where Carter & Mitchell hit it off where Later they run into Kiera because Mitchell picks Carter up from school; at 1st Mitchell wants to kill her right away but decides against it & he leaves her alone. Sometime later everyone lives as happily ever after as they possibly can; years later a solar flare comes through Earth where some people get powers known as meta-powers whereas some people like Kiera & Clark Kent get Kryptonian powers & they become Supergirl & Superman respectively as well as Michael Genzod becoming General Zod & they end up in a massive fight whereupon Superman gets murdered by the Worldkiller known as Doomsday where after said death Supergirl becomes distraught but she ends up avenging him & after that she decides on a self-imposed exile to the Fortress of Solitude & also she reunites with her mother who'd also been given superpowers & they decide to find a place to live which ends up being Argo City, Krypton where they end up with a better life where Alura joins the Kryptonic Guild as an military adjudicator & Kara as a lead scientist for the science division; during this time Alura sentences her twin Astra & Astra's partner Non to the Phantom Zone as well as Kara coming up with the Kryptonian defense system known as Medusa but before it can be implemented Argo receives seismic tremors that turn into quakes which starts destroying it.
Kara rushes around to find her mother so they can leave together but they only find a single pod so Alura tells her daughter to take it; Kara ends up in a wormhole that takes her to Earth 1 where she works at Star Labs with Barry Allan where they create a device that can destroy wormholes as well as making the multiverse a single Earth known as Earth-Prime. A few years later Crisis on Infinite Earths happens but Team Arrow, Flash & Legends end up stopping it by destroying the being known as the Anti-Monitor & finally everyone lives happily ever after; if only for a while. Later on, for some reason or another other things happen whereupon, in an alternative timeline, a different 13-year-old Kara Zor-El crash-lands on an anti-alien planet where a majority of the human population's anti-alien due to wars indirectly caused by Superman; she crashes on Earth 11 where her cousin, who brings her to live with the Danvers, saves her from her pod. They explain that this earth's an anti-alien planet & she needs to watch out for herself. After that, they settle her down for the evening but that didn't last; at least not for Alex. The older girl realizes that the younger ones having a bad dream so she goes to comfort the other but it doesn't go as she thinks it'll go. She hugs Kara who starts rubbing her face in the crook of Alex's neck & this causes the other to become slightly aroused. She pushes the younger 1 off her & leaves the room to go back to hers. Kara follows her to ask what she's wrong, Alex tells her, Kara apologizes & promises not to do it in the future; a few weeks later the alien murders start. Sometime later Alex's informed that 1 of the people murdered's her best friend, which causes her to break down in tears. She goes to her room where her younger sister comforts her. What turns out initially to hug turns into something more; Alex does exactly what Kara'd done before but this time they go farther, after this, they fall asleep in each other's arms & over the next few months, they keep up their unsisterly activities but stop once they realize it isn't safe for them in case they get caught because of Kara possibly using her superspeed to get off of Alex & they don't want that to happen; a few months after this, Lex Luthor becomes the newest POTUS whereupon he implements the Purge which states that a period of 12 hours murder/other unsavory things're considered legal. This happens because of Lex's group called the New Founding Fathers of America. With this purge, his party notices that more parties than killings're taking place & that crimes're mostly just looting/vandalism, as opposed to the expected murder so he calls in favors from mercenaries that he knows so that his purge can become more successful. He specifically tells his men that aliens're the ones that need to be wiped out because they're ruining Earth's way of life. They end up doing as told. At the end of this, he finds that lots of people don't agree with it because why just've 12 hours of killing aliens when you can just kill them at any time? He ends up agreeing so he gives people an incentive to do just that; for every alien killed $1000're taken off of their debt to the IRS. When the Danvers find this out they try to send Kara away but she refuses because she already lost a family & doesn't want to lose another. They finally relent but Jeremiah decides to make her less detectable as an alien by giving her a pair of glasses, which she refuses because she doesn't want to look like her cousin. He relents & asks her what she'd like him to create as a thing that'll dampen her powers; before she says anything Alex says that she should get earrings that way people won't think it's weird that she didn't've them pierced. After that, Kara agrees to do it so they get Kryptonite needles to do it. She gets her eyebrow pierced. Within the next 4 years, she gets her lip/tongue pierced as well as filing her canine teeth down to fangs, dying her hair Manic Panic Yellow, cropping it short, changing her clothing style & getting tattoo sleeves that include different Kryptonian symbols such as her families birth dates & all the important characters in Tim Burton's A Nightmare Before Christmas. She looks like a cross between Captain Marvel, Pete Wentz & Sid Vicious; in addition, she decides to go by her Kryptonian last name but instead of it being Zor-El its Le-Roz.