Han Seung-hee is a successful painter and a happy single mother to her son, Geu-roo. But when she gets diagnosed with a terminal illness, Seung-hee becomes determined that Geu-roo will be adopted by a nice family after she's gone. So she seeks out her ex-boyfriend Moon Tae-joo, and ends up befriending Tae-joo's wife, Seo Ji-eun. Meanwhile, a much younger photographer Gu Ji-sub falls for Seung-hee.

• Hong Jong-hyun
• Jeong Jun-ho
• Choi Song-hyun
• Song Yun-ah
• Park Seo-jun
• Yoon Chan-young
• Moon Jeong-hee
• Hyun Jyu-ni