

The U.S. nuclear medical professor Charlie Clare quits his career for family, but is abandoned as his wife and daughter favor his love rival Isaac. After suffering his family’s ignorance, he decides to leave for the Unicorn Project, which he designed for healing his daughter’s neuro-skel birthmark as his life work. But unaware that Charlie’s burning his life for them, his wife and daughter deepen the rift with Charlie upon reunion and eventually destroy everything Charlie left for them with their own hands before realizing their errors, only to find it too late.

Woo-Yeon, a second-generation chaebol, starts an internship at her father's company, where she works with Jae-Hwan, a notoriously prickly but highly capable and sexy boss. She soon discovers that Jae-Hwan’s wife, Ji-Su, was the one who bullied her in the past. Determined to get revenge, Woo-Yeon decides to make Jae-Hwan her own man.