Ga-In’s (Hong Soo-A) family went into financial difficulties when she was a college student. One day, she happens to meet Eun-Jung (Lim Seong-Eon). They went to the same high school. Unlike Ga-In, Eun-Jung seems to have everything including a happy marriage life and stable job. Ga-In feels jealous of Eun-Jung and soon she becomes obsessed that she is Eun-Jung.

A woman who lost her memory falls in love with the husband she despised.

Sung-chil works at the Jang-soo Store which is owned by Jang-soo. Sung-chil is stubborn and has a bad temper, but he changes after meeting Geum-nim. Geun-nim runs a flower shop and her daughter Min-jung does not like her meeting Sung-chil.

Beautiful, workaholic Bo-hee is a successful marketing executive at the number one toy company in Korea. Respected by her colleagues and in line for a promotion, she makes an irrevocable mistake that gets her fired from her job. Bo-hee's life further spins out of control when her husband Gang-sung leaves her soon after. Bo-hee is befriended by her neighbor Nan-hee, an amateur sex expert who runs a sex shop on the brink of bankruptcy called "Casa Amor." Nan-hee's predicament inspires Bo-hee's creativity, and using her background in children's toys, she is determined to save the shop by making its ambiance more refined and by promoting better sex toys.