A fantasy world with vampires ,werewolves and humans(although the other two species have long separated themselves from humans).the vampires and werewolves have always been at odds with each other,but never been quite able to eliminate or get along with one another.I wonder if something will change that?

Urban fantasy-ish

Pretty much the standard

Relatively low, it takes place in like, victorian times with a bit of magic but its not widly aveilable.

I saw a short comic-fanfic, liked the concept and it evolved from there.

The vampires and werewolves of this world have pretty big cultural differences despite theoretically living relatively close to each other. Especially when it comes to familiar relations;
Vampires have quite closed family dynamics, referring to each other more often than not using very polite and/or official language, and everyone outside your immediate family is to be referred to using only things like sir/ma'am/Mx./Ms./Mr. Or by their official title.

Werewolves on the other hand have a lot closer familiar relations with almost everyone in their respective clans, and because of that mostly refer to each other in a more friendly or "communal" manner: children will often call teens and young adults 'Big sis/bro/sib' , adults uncle/aunty and elders some variation of grandma/grandpa or another word for grandparents. The kids are also called by their name, usually with 'little' or sometimes 'young' added before( although 'young' is used mostly by elders when referring to someone whose somewhere in-between teen-adult )

Vampires have quite long and complex names but broken down this is how they get them(in order of how they are given and written);
First name - given by their parents, usually with a bit of imput from the rest of the family.
Mother name - decided solely by the mother of the child, serves the same purpose as a middle name.
Father name - decided solely by the father, also assencaly a middle name.
Last name - the name identifying the family as a whole.
When blood-bound(the vampire aqivelant to married)to someone, their last name is simply added to yours using a dash(-).