I think tia is also a vampire but she forget it just like the "vampire knight"

Good hypothesis. It could also be the reason that she is so weak as she hasn’t had any blood. But another idea is that she isn’t a vampire but she is the vampire Kings original source of blood and was injured with amnesia to hurt the king... just saying. Just hypothetically speaking. ┑(￣Д ￣)┍

Yeah i think so too... Maybe what if it was tia who turned him into a vampire. .

Whoa! Twist! Ya, that would be pretty interesting. Ah, what if they were both turned into vampires together and they need one another so they were separated by force to harm the king!... great, now I’m sounding like the crazy maid. Her hypothesis is more likely to be true tho. She was his first love. (￣∇￣")