The Plot:

Kim Harin (You can change her name if you want to) has wanted to become a vet since she was little and always tries to do a good job at school just to make her wish come true.

She lives together with her father, her stepmother and her stepbrother, Kim Jongin (Kai). Her real mother died of lung cancer when Harin was little.

Jongin has a friend called Sehun, who Harin finds a bit weird, because he never is outside, when the sun shines and is afraid of garlic. But one day she finds out he is a vampire.

Sehun has a huge crush on Harin, but he doesn't want to confess, because he is immortal and she is mortal.

One day Harin gets a mysterious call from a person, who wants to kill Sehun...

Your choice on the story:

Who is this person, who called her?

1. An other EXO member

2. Jongin

3. Someone else.

Does Harin like Sehun back?

1. Yes

2. No

3. No, but later she will.

Will there be a love triangle?

1. Yes, between Jongin and Sehun

2. Yes, between Sehun and an other vampire.

3. yes, etc...

4. No

5. Yes, between Sehun and a werewolf with a sixpack

Some scenes that I think would be a good idea to have in the story, but you don't have to write this in your story: 

@ Sehun confessing his love for her

@ Sehun in a fight between other vampires

@ some kind of plotwist

@ Jongin and Sehun fighting with each others

@ Harin using her vet power to help someone

@ Sehun and Harin going on a date.

Ideas for titles:

Mortal X Immortal

In Love With A Vampire

V for Vet and Vampire

(You can find better titles)

I hope you like your plot.