After a deadly earthquake turns Seoul into a lawless badland, a fearless huntsman springs into action to rescue a teenager abducted by a mad doctor.

Follows a former female boxing champion that now works as a substitute high school teacher and how after witnessing intolerable violence, she decides to take justice on her own fists.

Butler Kim (Lee Jun-young), a man who replaces errands that start at 100 won per day, and Baek Dong-ju (Lee Hye-ri), a funeral director who grants the wishes of the dead, running an errand company.

Love never hurt so good for two co-workers who enter a contractual relationship as partners in consensual play, pleasure and pain.

Ma-Ha is a member of girl group Teaparty. The other members are Ri-A and Hyun-Ji. Since their debut, they haven't achieved much success. Ma-Ha has received some attention due to her resemblance to popular singer Ri-Ma. Teaparty then takes part in a reality TV program, involving popular idol groups participating in sporting events. Ma-ha wants to catch the attention of viewers. Meanwhile, Kwon Ryeok is member of popular boy band Shax. He is well liked and is good at singing, dancing, and acting. He is also focused on maintaining his success. He doesn't like Ma-Ha, who imitates the appearance of popular singer Ri-Ma. During the TV program, Hyeok from boy band Shax gets injured due to Ma-Ha. Kwon Ryeok bursts out with anger at Ma-Ha. She also receives hate from other people. Ma-Ha doesn't want to see Kwon Ryeok anymore, but they cross paths on TV programs and while performing in a drama series.

An AI programmer accidentally develops an AI program called Cho Sang Shin, which will identify trashy humans, and she uses it to save people who are in difficult relationships.

Ki Moo-Hyeok, a lawyer with a high winning rate, only cares about money. Due to a murder case at a high school which he deals with, his reputation as a lawyer hits rock bottom. To regain his good name as a lawyer, he sneaks into the high school and work as a temporary teacher. He tries to reveal a secret which the students have, and gets involved with Teacher Ha So-Hyun, a P.E. teacher who loves her students. They then face the students'secret.