After her mother died when she was young, Chisato grew up with her father and lived an ordinary but happy life. After graduating from college, she got married to her rich second-generation classmate, Yuta Mayama, and she was supposed to live a happy married life...

After eight years of marriage, I have been treated like a nanny by my husband, mother-in-law and father-in-law, and I get scolded every day.Despite this, the strong Chisato still endures the occasional tenderness shown by her husband with a glimmer of hope.On the day of her 30th birthday, she accidentally witnessed her husband, who was supposed to be working, and a young woman, Mitsui Runa, walking in harmony.Chisato knew that her husband had betrayed her, and she and Runa were so angry that they pushed each other, and then they were hit by a car...

After waking up in the ward, the husband called his lover's name and said: “It's great that Runa is still alive...”.But Senri was reincarnated into Runa's body.Qianli staked a new life and vowed to take revenge on Yuta...

Chisato Mayama (Fujiko Kojima) is a woman who feels extremely depressed in her marriage.Her marriage to her husband Yuta (Chiga Kenaga) is in name only. Yuta and his adoptive parents have an indifferent attitude towards Chisato and even regard her as a servant in the family.Despite living in such an environment, Chisato still loves Yuta deeply and hopes to win his heart one day.

However, on Qianli's 30th birthday, her world completely collapsed.She stumbles upon Yuta's close relationship with a young woman named Runa (Kane), which causes her extreme pain.After a fierce argument with Runa, a sudden car accident changed everyone's fate.

Yuuta (Chiga Kenaga) and Runa/Chisato (Kane) return to the apartment.Runa was disgusted by Yuuta's advances and refused without thinking, but she covered it up very skillfully and didn't make the situation awkward.

After sending Queen Yu away, Runa was overwhelmed by anger and sadness while re-accepting the fact of her reincarnation.In this mood, she suddenly discovered the scars of the accident and thought of the first way to take revenge on Yuta.

Afterwards, Runa pretended to come into contact with Yuta's client Sato (Kimura Ryo) by chance, and planned to use Sato to frame Yuta.She conveyed her bad comments about Yuta to Sato and imposed sanctions on him——.

Yuta (Chiga Kenaga) felt at a loss due to the loss of an important customer, but his father Shinzo (Iida Motosuke) cleverly solved the problem, and Yuta became even more complacent.

On the other hand, Runa (Kaon) thought she had successfully suppressed Yuta and was in a good mood when Chisato's college classmate Soujiro Inoue (Daiki Sato), who works in an advertising agency, contacted her.After learning that there was a CM filming job, she rushed to the scene.When Soujiro saw Runa's action, he suddenly remembered his college classmate Chisato.

On the way home after the shooting, Runa, who was thinking about Soujiro, received a message from Yuta...

Yuuta (Chiga Kenaga) obtained 10 million yen through illegal transactions, but was immediately discovered by his father Shinzo (Iida Motosuke) and was removed from his position as director, leaving him in despair.Thinking about whether there is a better way to get revenge, Runa (Kane) wants to marry Yuta and enter the “Mayama family” to seize his weaknesses.

Immediately, I visited the Mayama family and successfully used my knowledge from that time as a professional housewife to please Yuuta's parents.Everything seemed to be going well - later, Runa was called to audition by Soujiro (Daiki Sato), but Soujiro had some suspicions...

Yuta (Chiga Kenaga) told Runa that he was going to marry Ayano (Takayama Riho), the daughter of the Mifuji Group, and Runa (Kane) was worried that the plan would come to nothing.Later, when Runa went for an audition, she was told by Soujiro (Daiki Sato) about Shiling's Sato and Yuta's relationship that she couldn't help but say "I am Chisato".

Moreover, the woman who spoke to her affectionately at the audition venue was Yuuta's fiancé, Ayano.Is Runa really Chisato? Soujiro, who wanted to confirm, called Runa to the university in his memories.

Chisato's father Satoshi (Yu Tokui) died in an accident, and Runa (Kane) and Soujiro (Daiki Sato) went to the funeral site.Runa fell into deep self-blame and was immersed in sadness. Thanks to Soujiro's help, she gradually regained her original self.

She invited Soujiro to her home for some alone time, but she happened to catch up with Yuta coming home, and the atmosphere suddenly became tense!?Yuta was furious, and Runa tried to calm the situation. Although the crisis was temporarily resolved, Runa accidentally found a key at home, and after reading the genuine Runa's diary, she learned of Runa's unknown past.

Yuuta (Chiga Kenaga) threatened Ayano's (Takada Riho) father Shinzo (Iida Motosuke), who was involved in the “dedication business, and took away the throne of Mayamafes president.On the other hand, Runa (played by Kanon) heard from Soujiro (played by Daiki Sato) that based on the judgment of the client, she will become the image spokesperson and hold a press conference.But I know that all this was planned by Yuta...

At this moment, Ayano came to me to discuss the donation... In order to carry out the final revenge at the press conference, Ayano decided to accept the ”dedication%.

Chisato (Kanon) and Soujiro (Daiki Sato) originally planned to reveal everything at a press conference to end the turmoil.However, because Yuta (Chiga Kenaga) suspected the relationship between the two of them, he installed a bug in Runa's house in advance, causing the plan to be blocked and there was nothing he could do.

Can Chisato/Runa successfully complete her revenge and reach a happy ending?