Battle For Happiness
3 mothers, who come from different backgrounds, compete fiercely on social media over who is happier. The mothers are Song Jeong-A (Jin Seo-Yeon), Kim Na-Young (Cha Ye-Ryun) and Oh Yoo-Jin (Park Hyo-Joo). Meanwhile, Hwang Ji-Ye (Woo Jung-Won) is a working mom and she works for a bank. She is not one of the 3 women competing in the happiness battle, but she is able to see them from up close. One of those 3 mothers then experiences a mysterious death. Somehow, Jang Mi-Ho (Lee El) jumps into the mothers’ social media happiness battle to reveal the secret behind them. Jang Mi-Ho works in the marketing department for a bank as an assistant manager. She has a reasonable personality and doesn’t like having deep relationships with people.