Streamer!MC, but au is based off this post. Thank you @arn9tails.
Long story short. Reverse isekai. Teyvet transporting to our world. Teyvat inhabitants being giants compared to earth humans. SIZE. DIFFERENCE.
So, Streamer!MC is a streamer who mostly streams Genshin Impact, but then this post happens, and bam! Suddenly Genshin Impact isn't a game anymore. The nations of Teyvat have suddenly appeared in the real world, and that meant the characters she spent blood, sweat, tears, and so much money on were most likely VERY real. The story she once played through actually happened.
It was an uncomfortable realization.
And don't even get her started on the fact of the sheer size difference regular humans and Teyvatians have... It's terrifying...
Streamer!MC immediately stops playing Genshin Impact after that, even posting a video explaining why. It wasn't right. This game wasn't a game anymore. This 'game' was pushing boundaries to a point where it could be considered creepy and revealing things the characters of Genshin impact would've most likely preferred kept secret.
So, no more Genshin Impact on her channel.
But on the Teyvetians side of things, I imagine them modernizing a little. Imagine each nation having the power of the internet and maybe a character stumbles across Streamer!MC and watches some of her Genshin content...
(Warning: OCness cause I'm horrible at writing characters in character. And Yandere elements.)
Zhongli.
You can't tell me he isn't irritated, if not enraged with having his cover blown by the earthlings and his retirement plan ruined.
But even so, Cloud Retainer was the one that told him about this... Internet thing, one day when they met up for tea.
Even going as far as to show him an odd contraption that she recreated from some earthling technology called a laptop.
Looks as useless and annoying as those little earthling devices called 'phones' that recently started popping up in all the nations...
She ends up giving him his own little contraption, and later that night, he let curiosity take over and messed around with it and stumbled across something called twitch, and a... Streamer? What in Celestia's name is that?
But then he sees the title 'My first experience with Genshin Impact!', and he knew what Genshin Impact was. Everyone in Teyvat knew. And most hated it or found it interesting.
Zhongli disliked it on principle as it blew his cover, but he was curious...
The earthling girl spoke a lot during the whole, uh, playthrough? He still didn't have much knowledge on this subject yet, but he watches the whole thing... the earthling had a nice voice...
He oddly felt annoyed as he heard her gush about how pretty Mondstadt was... she should see his nation; it was much more beautiful than that drunk bard's nation.
He ended up watching the next stream after the Mondstadt arc concluded and Liyue was introduced. And the utter smugness he felt he heard her amazement over how lovely his nation was, nearly threw him for a loop.
He can't help but wonder how she'd react is she saw Liyue for real.
And when he saw her reaction to seeing him for the first time in game? Oh, it was honestly precious. She wiggled around in her chair, giggling in an almost shy way as she listened to him talk in game. There even a blush on her cheeks!
After that, Zhongli ended up going through all of Streamer!MC's content. Which meant all of her Genshin content.
With each stream he learned more about her. little things, big things, Streamer!MC was an open book.
Don't even get him started when he saw her pull for him for the first time! Even though she was grumbling about money Streamer!MC kept pulling until she got him AND his weapon.
It was honestly somewhat ego boosting how she always had him on her team despite some of the more difficult matchups. And practically spoiling his game self with the best artifacts as well!
It... it was odd. Seeing someone he had not even met caring so much about him. In her eyes, he wasn't supposed to be real, but even then...
...He didn't dislike it.
But then he finally got to her last post. This one apparently posted sometime around when Teyvat landed on earth. The one where Streamer!MC explains that she would NOT be posting anymore Genshin Impact content because of Teyvat's unexpected arrival.
"It's not a game anymore! The characters of Genshin are real people! I'm not playing something that the 'characters' had no say in!"
The MC huffs in annoyance. "How would you guys feel if all your secrets were revealed in a video game, huh?"
And it goes on with another more recent post. Streamer!MC says she was retiring from Twitch to focus more on schooling.
Retiring? But... But that meant she wouldn't stream anymore, right? That he wouldn't be able to hear her voice anymore... right?
Zhongli. Did. Not. Like. That.
Suddenly, it hits him. He remembers hearing about... issues, the earthlings had recently. Issues dealing with kidnappings. He knew it was from traffickers, mostly treasure hoarders and the bored Fatui or two looking for some quick mora, but...
Hm... Maybe he should have a chat with Childe... That rascal was in Liyue at the moment and had been demanding him for a spar... Maybe Zhongli could offer him a contract? The Harbinger gets a fight, but only if he'll fetch him something... special.
"...Ugh, my head..."
Streamer!MC groans as she slowly sits up, feeling confused and little dizzy. Last thing she remembered was walking back to her apartment after a long day of college when she suddenly felt the ground start to shake and people screaming before she blacked out...
Once her vision clears, she realizes she was in... a cage? Well, to be more exact, a giant intricate birdcage, which automatically starts to make her panic. Even more so when she realizes she was in different clothing! (Just picture the Geo symbol on it)
Trying to calm herself, Streamer!MC tries to take note of her surroundings. In the birdcage, there was the softest of pillows and blankets, the most comfortable bed, a soft flooring that felt like she was walking on clouds... and oddly enough, Zhongli plushies of all sizes, all in his Exuvia form, tucked all around the birdcage.
There were also books, but most you've never heard of, and the ones you have... were ones you only heard about or saw only a few paragraphs while playing Genshin Impact.
Now feeling absolutely terrified, she stumbles over to the edge of the cave, grabbing at the bars and peeking outside. Outside lining the birdcage was flowers... flowers that looked like eerily like Glaze Lilies. A flower that couldn't be anywhere but in- Oh. Oh...
She finally notices her surroundings. The landscape before her looked exactly like a domain from Genshin Impact, particularly, the Domain of the Wayward Path, but so much bigger. But that couldn't be right. Why was she here?! How?!
"Oh. You're finally awake, little one."
Streamer!MC freezes at the voice. She knew that voice. Knew it very well. Slowly, she looks up... and sees a massive Zhongli staring into her birdcage, smiling that calm and mysterious smile she remembers from the game.
Extra notes.
Zhongli keeps Streamer!MC hidden inside his own Adepti Abode.
Only the Adepti know about Streamer!MC. So even if she somehow escaped, an Adepti would quickly find her and bring her back to their lord.
But it isn't like she could get far with her tiny size.
Streamer!MC's birdcage is made of Cor Lapis.
Cloud Retainer was the one that managed to shrink everything in Streamer!MC's birdcage down to the earthling's size with one of her inventions. The bed, pillows, blankets, books, plushies, etc.
She also did Streamer!MC's clothes. As for how she got it on Streamer!MC, however... Let's say Adepti magic is very versatile.
The large amount of Exuvia plushies in Streamer!MC's cage was because Zhongli remembered a stream where she proudly showed off a plush of his Exuvia form she bought for herself, and recalled how she said she wished she could buy MORE.
Well, he was the God of Mora, so it wasn't hard to commission some special one of kind 'Rex Lapis' plush toys.
Zhongli doesn't refer to Streamer!MC as a pet. He actually gets very angry when Childe called her that after giving her to Zhongli as per their contract requested.
The 11th Harbinger gets the fight he wanted but it only lasts a few seconds before Zhongli yeets him into the harbor in a one hit KO.
After some time passes and Streamer!MC stops fighting back, Zhongli starts taking her out of her birdcage, holding her and carrying her around like a delicate gem.
He bonds with her by gifting her various gifts (Which Cloud Retainer than shrinks down). And always talks to her daily, as he recalls from her streams of how she loved his voice. So, he uses it to his advantage, slowly breaking down her fearful shell with soft words and more.
Also slowly teaches her to rely only on him. As all he wants is best for her. Especially since the world was quickly becoming a dangerous place with the more... vile, Teyvatians snatching earthlings up to trafficked as pets or worse.
But Streamer!MC wasn't a pet. No. She was something so, so much better...
"宝贝 (Bǎobèi), you shine as bright as a Cor Lapis but you are also as delicate as a Glaze Lily, if not more."
Streamer!MC lays curled up in the Ex-Archon's hands, looking oh so very tiny and fragile, and stares up at him with sleepy, but trusting eyes as Zhongli ran a finger down her back, slowly beckoning her back to sleep...
