Jun-kyung feels conflicted after seeing Do-hyun leave his studio with Yoon-ju. Despite that, Do-hyun decides to propose to Jun-kyung. Jin-ho invites all his family to the campground, and they have a nice bonding time. Meanwhile, Jun-kyung and Do-hyun visit an OB-GYN, and they receive shocking news.

Jun-kyung ends up asking Yoon-ju if Daniel is Do-hyun's biological son. She regrets it immediately, thinking she's hurt everyone. Ja-yeong gets diagnosed with Alzheimer's disease, devastating Jin-ho. Meanwhile, Do-hyun secretly gets a DNA test done on himself and Daniel.

Ja-yeong sees Jin-ho struggling, so she decides to leave him and admit herself to a nursing home. Daniel finds out that Do-hyun isn't his biological father and becomes dejected. Yoon-ju decides to leave Korea with Daniel. Meanwhile, the family holds a birthday party for Ja-yeong, and she confesses that she has Alzheimer's disease.