Omegaverse Aether Male Harem •Highschool AU•

First Day Of Teyvat Highschool!

❗️Note: Slight Lumine angst here, and a bit of Aether's omega heat, Read at your own Risk!❗️
(ps. i use '~>' means moving to another place or action)

Characters used: Aether, Lumine, Childe, Venti, Lisa, Diluc

Teyvat Highschool, a very popular school for being fulled with Alphas. Today, Aether and Lumine will be going to this school, awaiting for their new Highschool life in Teyvat.

"Aether! How many times have i told you- this is our first day we can't mess anything up!" 
"Give me one more second!"

The boy replies. He swiftly changed into his uniform, wasted no time and quickly head to the bus for their school.

As soon as they hopped on the bus. Aether bumped into someone... 

"Aether wait-! Oh uh- Who are you..." Lumine stammered as she tries to catch up her brother's steps. 

"The name's Childe, I also go by Tartaglia- Nice to meet you! You new here comrades?" The ginger-headed man said, while Aether hides behind his sister's back, tugging into her sleeve.

"Oh, I see, your brother aye? Isn't he a cutie~" Tartaglia cooed and leaned close. Lumine snarled, turned away and looked at her brother, noticing how red his face is. 

She doesn't understand! why would so many people call Aether a cutie but not her? Because he's an Omega? Maybe because she's just a normal beta? Well, having an Omega as your child takes a very slight chance, she should actually be happy for having an omega brother. But, it's actually not a blessing- for her at least.

Aether often goes to heat, not like other omegas, but goes into heat for twice a month. Each stays for around a week, this, is the most annoying part- Aether keeps on letting out sex pheromones and attracts many alphas around. 

Well, Lumine and her parents just had to tell them to go away. But she is worried for Aether, they won't be in the same dorm block. Who knows if someone would do whatever they want to her brother when he's in heat?

It took them around 10 minutes to get to the school. The building looks as good in the inside as same as the outside. Aether gets a bit excited and ran into the school immediately. 

"Lumine! Look! this place is beautiful!" Aether cheered in awe. "Aether! careful! you might bump into someone again!" Lumine yelled, facepalming herself.

As soon as she finished her sentence, Aether bumped into someone again. Just how clumsy is he! The person gave Aether his hand. 

"Hello, I don't seem to see you here often, are you new?" The person in front of the omega gave a welcoming smile. Aether blinks, looking around for his sister. 

"Well, the name's Aether, and you're right, I'm new." Aether stood up. "Thanks for the help, I'm really clumsy aren't I." He chuckled.

"Aether!"

The omega blinks again, noticing Lumine running towards him. "Gosh! How many times have I told you to not run! Look at you!" She groaned, than eyed the man with braids. "Who is this?"

"He's Venti, he'll take us to the School Office for the class arrangement sheet" replied Aether. Lumine eyed Venti once more, and she took her brother's hand. "Alright than."

~>

The school office was big, and filled with a lot of people. Lumine made sure to hold Aether's hand tight. 

"Here!" Venti pointed to the stack of papers. "Interesting, I get to be in the same class as you Aether!" He giggled. "We could get to know each other better!" 

Aether nodded, unaware of the faint blush on Venti's cheeks. 

Lumine looked at Venti, who's talking to her brother with adoration in his tone. Her heart stumbles again, she wants someone to like her, to treat her good. It never happened, all the attention flew to Aether, her omega brother.

Before they were announced for their second gender results, Aether and her were basically the same. But after the results were announced, their parents always gives Aether the best, but not Lumine.

She always wondered, why couldn't she be an omega instead of a normal beta? She craves attention from her parents and others, and a lover... of course.

Unaware of his sister's situation, Aether walked to class with Venti. Upon stepping into the classroom door, He felt a strong scent of alpha pheromones. It made him gulp.

"Alright class, settle down." The teacher demanded as she placed down her books. "I am Miss Lisa, your new class teacher. And we have a new student, mind introducing yourself cutie?~" She smiled oh so sweetly, tone hinting a bit mischievous.

Without a doubt, Aether knew it was him, so he took a step forward. 

"Pleased to meet you all, I am Aether, seventeen and a male omega." Aether smiled, unaware of how some of his classmate's expressions changed, along with Venti's. 

Archons. He screwed up.

~>

Once class ended, he ran to Lumine's classroom immediately, which was only a few doors apart.

As soon as Aether approached the classroom, he felt a sudden of heat through his body, uncontrollable, slowly spreading through. He gasped, and held onto a wall while trying to catch his breath. 

The scent slowly went to Lumine, her expression turned to fear. She threw her books down, and ran to Aether immediately.

This isn't good. Lumine clearly remembers that Aether's heat just went away last week. She notices how some students in the hallway has got affected by the smell, it would take her entire strength to hold them back.

"Aether!" Lumine pampered the boy in her care, Aether was breathing heavily, face flushed red and his pheromones spreading quickly.

Shit shit shit shit shit- Lumine drenched a sweat, she couldn't bear taking care of her brother's heat on the first day of their high school life. "Is he aware of his heat? Miss?" A voice came behind her back, and when Lumine turned around. Goddamn he looks hot.

First look and she already knew he's an alpha, strongly built body and calming pheromones around him. Lumine nodded, still looking at the man with adoration.

"Allow me to take him to the infirmary." He speaks, and carried Aether up with almost no strength taken. Lumine followed him, a part of her worries for her brother's situation, and another part of her wanted to get to know the man in front of her better.

That students' name is Diluc, having red eyes, red fluffy hair, popular around girls and boys. Lumine is no exception, of course.

He carried Aether to a bed, and gave him some heat pills. "Normally when he's in heat, we would just leave him in his room until it wears out, are there any other ways?" Lumine asked worriedly"

Diluc remained silent for quite a while, Lumine notices how the tips of his ears turned red. "There's this way where he would have to-" He stammered, "Make love with an alpha." 

A moment of silent passed, Lumine's face went bright red, "Ah- I see- well," She coughed, "If Aether gave consent to it, I don't see any objections." She looked at the omega. Diluc still haven't spoken a word, "I'll fetch some members from the student council. Please wait here." and he left.

Lumine waits and placed an ice pack to cool her brother down. By the time Diluc walked back in, another man was followed by him.

NEW CHAPTER IN A FEW DAYS-

next chapter will contain smut (Albedo x Aether) read at your own risk <3.

I SWEAR IT WOULD BE CRINGE ;D