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Xiao Lapis.
His foster father is a teacher who is once known as Rex Lapis in his old days, but since that's a long time ago, his name was Zhongli Lapis now.
The man founded Xiao abandoned near a stall, he was in poor condition and since the hospital is quite far way, thankfully he's an expert in medical.
The boy doesn't remember why he was abandoned, the only thing he knew is his name, his age and his birthday. He was found when he was around 9 years old.
He did tooked a while to open up and now- they're a family, with another family member, who has a hair color of a glaze lily, and who is named Ganyu Lapis.
—–—–—–—–
Lumine Viatrix.
Sister of Aether Viator.
Aether is her one and only brother that she lived with, their parents died unknowingly when they first hit at a teen age.
Since then, they lived and help each other,when one is having a bad day, the other will be the one who'll do the chores or cheer them up such as buying gift and more.
The both of them went through some hardships but they managed to get away and start another brand new life.
—–—–—–—–
The twins are now in their college life, both transeferee from another school.
They did met alot of people and became their friends.
They both worked hard about their studies and both of them are honors ever since elementary and even until now.
Aether had a decent life, and already found someone who he truly love with his whole heart.
And Lumine on the other side.. well.. she swear to herself to not seek for any relationship, even though her older brother who is just a few months older than her, already approved if she's planning on seeking out for someone.
But she's more focus on her study, and competing with someone who she really despise because of his cold personality, selfish remark, and how he's such a distant person.
Well he is an introvert person though yet the thing that Lumine is more furious about is when there's a quiz competition.
They're the only ones who almost answered most of the questions, the student were afraid of them when these things were brought up, heck even the teacher is afraid of them yet she still needed to give those questions because it's part of their studies.
—–—–—–—
"Lumi! There you are, I've been looking for you everywhere"
A female voice was heard, calling out the girl who is named 'Lumine'.
"Amber? What is it?" The blonde girl turning around to see her friend sweating and almost out of breath.
After she finally caught her breath, she then continued speaking, "The teacher called me and she said I should tell you that you have library duty after school"
"But that wasn't part of my schedule and im not even a participant in the library?"
Amber just sighed, "I know, I even told that to the teacher but she ignored it."
Lumine just closed her eyes, trying to calm down her nerves rather than outbursting her anger infront of the brunette girl.
She just somehow nodded in agreement before walking away, she needs to find her brother first.
Sad to say- They're in a different class but do still kept in contact to each other when they have free period or lunch time.
After a short while, she stumbled to her brother who is fixing it's own backpack on the ground.
"Aether." She called him out, the other blonde glanced to his side, seeing his sister walking towards to him, "Oh Lumine! Should we head home now?"
"Ah about that– The teacher told me I have library duties right now." The boy raised an eyebrow to his confusion, "I don't remember that in your schedule?"
She just sighed, "I know, you should go home now without me, I'll make it quick, don't worry."
She reassured him with a smile which made him loosen up a bit, "Okay, just give me a call when you're almost home, k?"
The girl nodded before bidding a farewell to her brother before going to the library.
The hall was quiet and she likes it, Lumine wasn't a very much extrovert if she say so herself. Rather– She's quite a listener in her role.
She hummed a familiar lullaby which their parents sang for them when they're about to sleep, oh how she wished she could turn back time.
While humming, she didn't realized she was finally at her destination. She quickly stopped her track and slowly opened the door.
It was quiet. Obviously it would be quiet Lumine, stupid me.
She sighed and saw all the scattered books left and right, on the desk, on the ground, everywhere.
She then continued humming the tune she cutted earlier while picking up some books and placing it to the right shelf.
Little did she know that there was also someone there, still doesn't know that there was another person in the room.
After a while, there's still a bit more books, and it's already past a few 15 minutes. The sky already had a shade color of red and a mixed of orange.
Lumine let out another sigh before continuing her lullaby and picking up some more books.
While putting back to it's right place, she can't help but feel like there's someone watching her.
She stops and sighed, "Who are you."
"Didn't also expected you to come here."
A certain low raspy voice was heard, turning to her right side– She saw with such spiky hair with the color of dark jade with a little bit of highlights, it sharp glimmer amber eyes narrowed her.
"Xiao..?"
Wait no– Why did I just said his name!?
"Pfft-"
She looked at him again, but this time, he had a smirk on his face.
"Looks like I won the bet."
Ah yes. The bet. The bet where no one should speak their name to each other, if one failed, one shall punish them by giving them orders.
This bet was swiftly made because of that another quiz the teacher suddenly gave.
And though of course, Xiao and Lumine, were both at it again, and also were tied up scores.
So one student, who's named Paimon, made them both a bet. If one person said their name for the rest of their life, one shall be punished.
So of course they quickly insulted each other by weird nicknames to say the least.
And back to present, Lumine had a small light blush due to embarrassment, she may or may not remembered the bet they made.
I mean clearly it had been weeks since he last saw him but scratch that— She gulped down her saliva, gripping on the book she's returning, she spoke a quiet voice, "G-guess I forgot about it... Then, what's your.. you know"
He hummed in response, pretending thinking of something who knows what is. Then he stops and let out another playful smirk which made this shiver for the golden locks.
Still keeping the smirk on his face, he began to walk towards her which made her step back.
Not until she felt the shelf behind her back, she's doomed, she was trap, not knowing what to do or where to run, her feet won't move.
The boy trapped her with one hand to it's side, leaning in more which made their face a bit more close.
Her breath hitched at the sudden lean, a heat raised upon her, suddenly covering her face with a book.
The boy chuckled, "Oh my, hiding your pretty face now~?"
Pretty!?!?
"S-stop saying nonsense and just say your punishment!!" Lumine even blushed even more.
Xiao leaned into her ear, whispering in a low voice, "Isn't this a library? Students should be quiet when they come in here." Xiao even teased her more and more until he saw her ear even getting more redder.
Lumine was now a blushing mess. She didn't knew that his rival can be this sly. Her knees gave up and she slumped down on thr ground, revealing her flushed face.
Xiao just quietly laughs before crouching down to her level, "Well aren't you a flustered one, you know you're so cute when you blushed."
"Just get to the point.."
"No need to rush princess~ Well then I'll tell you."
The boy took a long pause than she imagined, but Lumine still waited, but his response quickly made her soul jumped out of her body.
"...Go out with me this up coming Saturday."
The boy left her speechless before standing up, "Don't forget, 3PM at Teyvat Museum, don't be late or else I'll kept demanding you more."
She couldn't reply, she was still processing the punishment she had.
"Oh by the way, it's a date~!"
He yet caught her off again, she was about to reply back when she noticed his presense wasn't there anymore.
Lumine putted another book to her face and groaned, "I really don't know if this is a wonderful day or not..."
Then– Her chest felt so light, and her heart and stomach felt like it fluttered with some butterflies. She was having mix feelings of emotions, happy, flustered, angry, in love...
Wait.. in love? IN LOVE!?!?!?
Now she was internally screaming inside, still trying to composed herself but failed.
Now on the other hand, when Xiao left the library, he then slumped his own body behind the door, putting one hand to his mouth, he was blushing!!
Oh how bold of him to finally asked her out.
Mhm yep, 'finally.'
Lumine was his first love if he's being honest, rather than he sees her as a rival, he also sees her as his soulmate.
Oh how this was a wonderful day to be staying so late.