Hyo-Jin (Lim Soo-Jung) is a 32-year-old woman. Two years ago, her husband died in an accident. Her husband has a 16-year-old son, Jong-Wook (Yoon Chan-Young), from a previous marriage. Hyo-Jin begins to live with Jong-Wook.
兩年前的一場意外,讓孝真失去她摯愛的丈夫。32歲的她還沒走出喪偶之痛,老天又交給她一項難題--她必須照顧老公與前妻生下的兒子鐘旭--正值叛逆期的16歲青少年。孝真嘗試打開心房與鐘旭相處,但鐘旭不領情,他跟著好友四處遊蕩,直到發現好友懷有身孕……
生命看似無常,卻是有常。成為母親可能是充滿喜悅,也可能是夾雜著疑惑與不安,家庭的羈絆是複雜且永恆的命題,尤其是成為母親之後。