this is a world of vampire...mor you can say...it got own by vampires.... people in the country got mortified when they know about vampires them taking over the world...they were afraid getting bitten or murder by some...

Time skips to a school day

Taehyung is your bestfriend since childhood....but one secret you don't know about him that he is a vampire... and a tier 1 vampire... tier1 vampires are the most powerful ones... and they have every type of power like telekinesis or reading mind etc... you were putting books in your locker and saw a boy coming towards your direction... It's Elijah...you didn't knew he is also vampire...his tier is 3 a mid one with not much power...but suddenly taehyung came behind you....he knows that Elijah is thirsty....for your blood...