KazuYaka Vampire AU

Prologue The Beginning

A long time ago, There are 7 archons ruled in Teyvat, each of them ruled a nation in which is Montstand, Liyue, Inazuma, Sumeru, Fontaine, Natlan, and Snezhnaya as each region also handled a title of each nation as well. Khaenri'ah is just a nation but without an archon and the cataclysm cursed the people into becoming vampires, making them immortal. The six archons launch an assault on the nation...Several years later...Some were infected by the people of Khaenri'ah. As they spread everywhere all across Teyvat. After the Archon War, all Archons disappeared except Focalors's vessel Furina. That's when Vampires are infecting and attacking the people of Teyvat. Until today, some researchers of the Akademiya searched for a cure. It was a normal day until. Some people have already lost their close ones since they were children or when their future comes.

Kamisato Clan is led by the Yashiro Commissioner named Kamisato Ayaka while her younger brother named Kamisato Ayato is a kind-hearted boy who meets people's needs and Thoma the housekeeper in the Kamisato Clan. "So what are you going to do Ayaka?" Thoma asked. "Perhaps work..It's important to do work first." Ayaka said. Ayaka sets off to go to work in an unnamed Inazuma office. Meanwhile somewhere outside of Inazuma city as there are 3 people looking at the tombstone, following the young detective's perspective is a man holding a picture of his father. The young detective was saddened by the loss of his father. "Heizou..I'm sorry for ur loss" Aether said with a soft tone. Heizou doesn't listen as he was used to following his father's path from a young age. Both twins feel pity for his loss until one of them asks him "Do you have any friends or family you have left?" Lumine asked. Heizou immediately remembers his one familial friend after Lumine asked him. He decided to return home..

Later in the evening Ayaka comes back to Kamisato Estate from work where something happens near her home "Help! Help! Listen to me..My friend..You can't do this to me.." He called while refusing to hurt his friend. Ayaka immediately rescues Thoma and threatens his friend "Don't ever hurt him...If you try again..You have to face me first." The human with fangs ran away after seeing her, Ayaka asks Thoma if he is alright though..As he answers "I'm alright Ayaka but..It's " Thoma answered "What?! He's.." Ayaka never knew this till now..What is that she saw before? She never saw a human with Fangs before..She decided to find the answer on the next day.

In the early dawn of Inazuma Ayaka was sitting on a bench thinking what happened yesterday "Aya..?" Heizou sobs. "Zou.." Heizou sobs as he was about to tell Ayaka the bad news "My Father..Is in a better place now.." Ayaka was shocked that she decided to take advantage of someone who treated her as a 'niece'. "What was the cause?" Ayaka asked with a serious tone "An attack of a vampire" Heizou answered. Ayaka without any other chances to lead the Kamisato clan, she decided to pass the title to her brother. Was this a fictional world? Was it real that Vampires existed a long time ago before the archon war? No it's not. Thus she lost a bit of her sanity so she decided to work as a Huntress. Before she sets off on a journey to stop the vampires she tells her younger brother "Ayato, You can lead the job as a yashiro commissioner." Ayaka said "Big sister..Where are you going?" Ayato asked. "Somewhere..I'll be back, I promise my dear brother. I'll take care of myself. Be careful of vampires alright?" Ayaka said. Ayato now lives as a Yashiro commissioner till his sister comes from her journey. Perhaps Ayato must learn too, how to live as a commissioner..Kamisato Ayaka was a Yashiro Commissioner who no longer works there she decided to become a vampire huntress following Heizou, Aether and Lumine.