As humans turn into savage monsters and the world plunges into terror, a handful of survivors fight for their lives — and to hold on to their humanity.

A pitiless demon becomes powerless after getting entangled with an icy heiress, who may hold the key to his lost abilities — and his heart.

Days after a heart-fluttering encounter with a charming man, Yu Na Bi bumps into him again. This time, she's formally introduced to Park Jae Eon.

A devastating loss and an unfulfilled dream lead Sim Deok Chul to a ballet studio. Lee Chae Rok's real-life troubles disrupt his training.

In a world where an app alerts people if someone in the vicinity likes them, Kim Jojo experiences young love while coping with personal adversities.

Music producer and composer Ha Rib made a contract with the devil to trade his soul for fame. This devilish transaction brought him all the fame he could ask for, producing many hit songs. As the contract expiration draws near, he bargains with the devil for an extension. For that, he must find another person to sell the soul. Ha Rib finds a perfect candidate, but contemplates because she would have to suffer for 10 years for his selfish fame.

Lee Roo-Ri tries to get a job at big company, but she gives up. She doesn't have a good relationship with her strict father. Lee Roo-Ri decides to travel to a foreign country to get away. There, she meets Jung Tae-Yang who goes by the YOLO motto. He wanders around the world and places priority on his happiness, but he also carries an emotional wound. After she meets Jung Tae-Yang, Lee Roo-Ri has a turning point of her life.