Sweet Blood Series by Seyoung Kim

Suho is a high school student normal... But he leads a difficult life, because his parents aren't interested in him. Furthermore, after a strange dream, he woke up with mysterious injuries on the neck and wrist.Elsewhere, the king of Southern Fantasy World is facing to a serious problem: lack of blood, the lack of which causes a drastic reduction of his fighting power. He must find humans and take their blood. Therefore, his servant and his dragon are looking for a human to satisfy their master... moreSuho is a high school student normal... But he leads a difficult life, because his parents aren't interested in him. Furthermore, after a strange dream, he woke up with mysterious injuries on the neck and wrist.Elsewhere, the king of Southern Fantasy World is facing to a serious problem: lack of blood, the lack of which causes a drastic reduction of his fighting power. He must find humans and take their blood. Therefore, his servant and his dragon are looking for a human to satisfy their master.They end up meeting Suho, whose blood is particularly sweet. When the dragon asks him to follow them, Suho accepts to escape to his miserable life. But there's a problem: the king hates boys. The dragon suggests dressing up in girl to Suho, hoping the king doesn't notice. less

One day, a group of mysterious warriors arrive on the island and Sooho realizes that his vampire master is actually a king. And the fate of the world rests upon his blood.

Sooho precariously navigates the deadly politics surrounding his blood-drinking master Kiahn. Nations rise up and prepare to wage war over the most precious resource in the world...access to sunlight. Deadly enemies and even deadlier lovers appear out of Kiahn's foggy past. Victory in the upcoming battles depends upon his access to Sooho's blood. Everyone wants victory, but everyone also wants Sooho dead. The only question they ponder is when to strike.

I don't fear Kiahn's wrath...because you've already killed me." Kiahn seizes Sooho from Prince Issac as a spoil of war, but Sooho forces his master to give the prince half of his conquered territory. The gift alters the balance of power between Issac and his sadistic cousin Prince Nick. Meanwhile, the dragon Sharka spies on Sooho from the shadows. The Sky Priestesses jockey for power on their floating continent. Kiahn's calculating fiancee Miyar schemes to dispose of Sooho... moreI don't fear Kiahn's wrath...because you've already killed me." Kiahn seizes Sooho from Prince Issac as a spoil of war, but Sooho forces his master to give the prince half of his conquered territory. The gift alters the balance of power between Issac and his sadistic cousin Prince Nick. Meanwhile, the dragon Sharka spies on Sooho from the shadows. The Sky Priestesses jockey for power on their floating continent. Kiahn's calculating fiancee Miyar schemes to dispose of Sooho. And Issac has an ace up his sleeve, and he intends to play that card at Kiahn's upcoming wedding. less

"From now on, destroy anything that gets in the way. I will become the damn king!"Kiahn and Sooho's cat-and-mouse game continues, as Kiahn tries to make Sooho fall in love with him. Meanwhile, Prince Nick is torturing Isaac, and thei

"The true sun has risen, so you can go back to your world!"As Isaac's prisoner, Sooho is having a hard time finding the best strategy to survive. He has to choose from being forced upon or letting Isaac do as he pleases with him. Witness to hi