Kim Ha-neul

 Lee Sang-yoon

Choi Soo-ah (Kim Ha-neul) is an experienced AirAsia stewardess who is married to Park Jin-seok (Shin Sung-rok), a pilot who dominates every aspect of her and their daughter Park Hyo-eun's (Kim Hwan-hee) life. Despite protest, Jin-seok sends Hyo-eun to an international school in Malaysia where she meets Annie Seo/Seo Eun-woo, Seo Do-woo's (Lee Sang-yoon) daughter. Tragedy strikes when Annie dies while in an attempt to come back home and despite their denial, Soo-ah and Do-woo's lives get intertwined together.