help me to recall a Manhwa/Manhua name, please. :D

[whosaint]

Before that... sorry for my poor english.
The description is...
- the comic is full of colour,
- long strips read style,
- the MC is a Scholar Student,
- the MC like photograph,
- it's the world where the vampire exist?
- the MC has a sister that has a duty to protect him from the vampires?

I will add more when i can recall somethings,

 

[Trihexa]

Hyulla's race ?

 

[whosaint]

@Trihexa Yesh! That was i looking for!
Thank you so much!

So, Hyulla, huh. that's why i can't find it with vampire tag, huh?

Lol

 

[Trihexa]

@WhoSainT
You're welcome

Spoiler

iya, gk ketemu kalau pake tag vampire