Byun Yo-han

Three lonely strangers meet at their department store jobs and find solace in each other's company while they explore connection and the nature of love.

Eight years ago, the youngest daughter, Gyeong-ju, disappeared during a school field trip to Gyeongju and never came home alive. On what would have been her birthday, her mother Ok-sil and her three daughters—Jang-ju, Young-ju, and Dong-ju—put on matching family T-shirts and set off for Gyeongju, the place where Gyeong-ju vanished, in what appears to be a family trip to honor her memory. But beneath the cheerful façade lies a deadly secret. In the trunk of their van is a bound and unconscious man zipped inside a plastic bag.

Seo-joon, loses everything to voice phishing and infiltrates a organization in China to meet Kwak Pro, the designer behind this phishing system.