Kai and his team of resistance were assigned and sent out on a mission in search of an antidote for an epidemic which spreaded almost 15 years ago. It was believed that this sickness originated from a health serum researchers were working on for the betterment of humanity. However, it backfired when an unknown chemical was mixed with the serum itself.

Because of this, the whole lab building exploded, spreading and polluting the air enough to last 3 generations of sickness. 

The King now needed the antidote because his only heir was on the brink of death; and without it — his kingdom would be in utter pandemonium and vulnerable with no rightful ruler.

But, what would Kai do if he realises the only antidote available now, would result in killing the person he thinks he is infatuated with?

~"~

MAIN CHARACTERS:

Wu Shixun, Daughter of Kris Wu and the King's godchild
Was once imprisoned before she was released to help search for the cure to the epidemic
Current Age: 26

Kim Kai, Krystal's childhood-friend-turned-boyfriend
Leader of the Resistance, a team of strong youths trained from young to fight and offer their services to the King
(Not to be confused with the King's soldiers; the Resistance are trained in private and are not known to the rest of the Kingdom)
Current Age: 27

Krystal Jung, the King's oldest daughter
Voluntarily joined the resistance knowing that her brother is badly affected by the disease; selfish only for her family
Current Age: 26

Byun Baekhyun, a member of the resistance and Shixun's best friend
Baekhyun's mother was also research-scientist and Kris's assistant. He's known for his humour and cheerfulness, and continuous
positivity despite being under harsh training conditions
Current Age: 27

Jung Luhan, Crown Prince and only successor of the King
Luhan's the only son and the first child of the King amongst his 4 children — which was why the King is bent on searching for the
antidote, realising that Luhan doesn't have much time left even if he looks well.
Current Age: 28

SUPPORTING CHARACTERS

Kris Wu, Head Research-Scientist who works solely for and with the King
He was given the responsibilty to create a serum for the betterment of humanity by order of his Majesty himself; all was well until a wrong step was taken
Current Age: -

Byun Boa, Kris's Assistant and Baekhyun's mother
Separated from her husband because of her career, and is now believed to be dead after the massive explosion
back at the research lab
Current Age: -