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.

When his nephew dies in a plane crash, stunt man Cha Dal-geon resolves to find out what happened, with the help of covert operative Go Hae-ri.

Han Soo-Ho and Han Kang-Ho were born as identical twins, but they live totally different lives. Han Soo-Ho works as a judge and he is guided by principles. Han Kang-Ho's extensive criminal record contains 5 different arrests. One day, Han Soo-Ho suddenly disappears. Han Kang-Ho secretly takes his brother's place as a judge. Han Kang-Ho, who was once considered trash, becomes "Dear Judge" and highly respected.