Skill, beauty and personality, “Diving Diva” Lee-young has it all. Not being able to be with her best friend Su-jin is the only thing that gets in her way. While pouring everything into the Olympics selection practice, Su-jin and Lee-young are involved in a freak car accident. Su-jin disappears without a trace, while Lee-young survives but loses her memory. Lee-young’s memory slowly comes back to her but remembers the strange side of Su-jin. Her iron will begin to shake on the diving board.