Yoo-jin (Jo Yeon-woo) follows Moon Hee (Kang Soo-yeon) on her business trip. He prepares to propose to Moon Hee with a surprise event in a hotel suite, but his plans are dashed by the sudden appearance of Moon Hyun (Lee Jae-eun). Moon Hee states that she wouldn't have accepted the marriage proposal even without Moon Hyun's sudden intrusion.
It's the day of Ha-neul's birthday, and Jang Han-na (Kim Hae-sook) and her family celebrate it together. Meanwhile, Moon Hee broods over on her son whom she was forced to give up, who must be celebrating his birthday somewhere.
