A beautiful female prosecutor and a considerably less attractive man find their worlds turned upside down when they are mysteriously reincarnated as entirely different people.
The tough but lovable female prosecutor will attempt to uncover the secret behind her reincarnation and will end up unexpectedly finding love in the process.
Cha Min finds himself working as the administrator of a law firm after his sudden reincarnation.
After getting alarming news from his fiancée, Cha Min has a mishap and receives an object called Abyss. Go Se-yeon meets someone who says he’s a friend.
Min explains what he did to Se-yeon, who’s in disbelief over her circumstances. Vowing to find her killer, she devises a way to help Min and herself.
Se-yeon and Min are stunned by what Park Gi-man has been doing, and they unwittingly get help from a police detective -- who thinks she’s someone else.
Convinced that he’s seen his ex-fiancée, Min is frantic to talk to her, but Se-yeon tries to remind him that he’s not the same person anymore.
After making a horrific discovery, Se-yeon considers using Abyss, and tries to persuade Park Dong-cheol to keep investigating the prosecutor’s murder.
Park Dong-cheol tries to hunt down Oh Yeong-cheol, who keeps eluding the police. Min’s mother doesn’t know what to make of the changes in her son.
Se-yeon finds herself seeing Min in a different light after realizing he’s always been by her side. Jang Hui-jin reveals something shocking to Min.
Park Dong-cheol demands to know why Se-yeon keeps interfering with the case, and someone claiming to be Lee Mi-do suddenly appears out of nowhere.
Se-yeon tries to explain her actions to Min and has an emotional reunion with her mother. Hui-jin refuses to back down when confronted by Min’s mother.
Se-yeon senses that she may be in danger. Min shares a secret about his father. Hui-jin’s mother gets agitated after seeing someone on TV.
After Park Dong-cheol alerts him about Oh Yeong-cheol, Min goes looking for Se-yeon. Lee Mi-do’s parents get a perplexing proposal from Min’s mother.
Se-yeon senses something unnerving about Seo Ji-uk. Hui-jin gets an unexpected visitor and has an idea about what Oh Yeong-cheol may be planning to do.
While trying to help Park Gi-man with the hit-and-run case, Se-yeon and Min uncover something odd. Seo Ji-uk is visited by someone from his past.
Seo Ji-uk implements his plan. On his way to meet Se-yeon, Min receives a disturbing call from Park Dong-cheol and grapples with a difficult decision.
Min and Se-yeon set out to obtain evidence against Seo Ji-uk with Park Dong-cheol’s help. Min’s mother questions Se-yeon about her intentions.