you are my mortal to claim. Xiaother / xiao x aether

1

(backstory)

Here we meet two exceptional twins named aether and lumine. They are blessed with good genes such as pretty eyes, long lashes, pretty golden blonde hair and fair skin with a nice figure

They were good at everything. Cooking, cleaning, memorization, and fighting. They were also nice and was always surrounded by their friends but they always struggled, Financially.

Lumine got super sick after a trip to the woods for her commission. Something strange and scary has been going on in her body making her sick and unable to move.

Meanwhile Ather her older brother by 4minutes has been working full time and even taking extra shifts to be able to afford lumine's hospital bills. Aether had hope that she'll be fine since he knows his sister is strong but what if...lumine wasn't sick but instead got played by a cruel and cunning element?

The medications had no use to lumine and even seemed to worsen her condition so aether asked advice from his psychic friend he helped in inazuma.

Aether came with his sister and had her examined by "hanzing" the psychic friend. "Oh...I'm sorry aether and lumine..I know you've helped me a ton of times but this element is too powerful for me to handle and I'm afraid your sister will gradually lose her life span as the time past.

"W-wait..you're kidding right?" Aether asked holding back tears "w-what element?" He added

"A powerful one. He is known as the last yaksha, the only survivor of the yaksha's from the great archon war and it seemed like your sister looked like one of his 'family' so he's trying to take her.." hanzing said defeatedly as his hands shake from fear

"Is there any other way to get him off my sister?" *Aether asked worriedly as tears were already dripping down his cheeks*

"BAHAHAHAHA you look ugly when you cry brother! You should stop that" lumine laughed at her brother's crying face

"Lumine! Take this seriously will you?!" Aether said angrily while sobbing

"Hahaha.. you twins are a funny bunch.." hanzing smiled before drawing a hydro symbol on the air then came a book landing on his lap

"Since you helped save my life more than twice... I'd be willing to lend this book to you, it's forbidden by the academia and is considered as a book made by the original sumeru archon who took interest in medicine and elemental elements..this book should contain one or two way to free your sister..but ofcourse comes a price which I do not appreciate partaking in" hanzing explained smiling as he tries to make the situation better "so I will lend you this book but I need you to promise me you will only use it to free your sister from this element? Am I making myself clear?" Hanzing said with a serious face

Aether nodded as he wiped the tears off his pretty face and took the "forbidden book" hanzing was handing him with a serious face

"So..I just follow what it says in the book and lumine's gonna be cured?" aether said with a tilted head

"Mhm..but this book should only be opened in an empty dark room alone by the reader..why? cause if the reader had someone next to them the person next to them dies immediately and if you're lucky they only gets possessed" hanzing explained smiling as if what he said wasn't concerning

Aether nodded intently and thanked hanzing so did lumine. Now the twins were off to their house

________
*Walking towards home*

"Aether...are you seeing this?" Lumine said with a weak and terrified voice quietly while tugging on her brothers braid who is busy supporting her weight so she can walk

"Hm? What?" Aether replied with a confused look and scanned his surroundings "I don't know what you mean" he added

"Use elemental sight stupid" lumine said sharply and aether immediately obeyed and saw a track of anemo wrapping around their bodies and the path they took

"Woah? this is cool but also scary.." aether commented with a worried look "I can also see a shadow behind the trees..." He added putting his guard up but the shadow immediately disappeared

The errie feeling was suddenly gone and the anemo traces disappeared out of thin air

"What the..." The twins said in unison with a confused but relieved look

_____
At home

Lumine is asleep while aether is in the bathroom floor reading a chapter in the forbidden book and following the instructions

Aether made a circle out of seasalt with an anemo symbol in the middle and lighted 4candles with a letter engraved on the candles making the name xiao then started reading incantations

"By the power of the elemental power anemo, the might of the underworld, I call upon you, last yaksha of the wind. Show yourself to me, and grant me the power, wealth, freedom I seek. I offer thyself to you , in exchange for a wish I so badly want granted." Aether carefully said each word as the wind gets stronger despite the locked window

Aether opened one eye to see what's in front of him but instead got pushed down on the floor by the yaksha who's now holding him by the neck with his face unbelievably close to the blonde boy

"Foolish mortal. The nerve to interrupt my process of taking another mortal's life has a big price to pay." the yaksha hissed at the terrified boy beneath him

"You're scared even though you're the one who summoned me? Huh! How foolish. Mortals these days..." The yaksha said removing his hand from the blonde boy's neck who coughed in relief as air finally got in his body

"Speak now or die. 1...2.." the yaksha threatened the blonde boy who's shaking underneath him

"I'll speak!" Aether finally said something
"Good. Now I now you're not mute. State your purpose mortal." The yaksha demanded

"I want you stop trying to take my sister.." aether said with a shaky voice as he tries to look at the yaksha's piercing eyes...

Woahh..his eyes..are pretty? Wait no no! He's scary don't think like this aether stop!

"Hm? And why do you think I'd obey a foolish mortal's wishes?" The yaksha said still staring at aether harshly

"Pls! I'll do anything...name your price!" Aether said with a determined voice that made the yaksha Infront of him soften but didn't show it

"Interesting...what do you wish to offer mortal?" He said with an interested smirk

"Anything you want pls.." aether said with dull determination in his voice

"You better not regret your words mortal." The yaksha grinned and leaned down closing into the blonde boy

"I'm claiming you. That's my demand" the yaksha said with a smug smile leaving aether with a flustered face

The yaksha leaned in and got on top of aether before ripping aether's shirt off exposing his shoulder which the yaksha quickly bit for a few seconds before pulling back then kissing aether passionately while aether couldn't do anything about it but feel his knees go weak. As he lets the yaksha kiss him passionately. Y
The yaksha pulled away leaving a string of saliva behind.

"Officially claimed and marked." The yaksha smirked before disappearing into thin air leaving the blonde boy gasping for air with a flustered and confused face