Sakahira Riku, a first-year high school student, is jokingly pushed on the shoulder by his friend Tasaki while swimming by the pool, and falls into the pool with Mizumura Manami, who is next to him. The next day, when he wakes up, he finds that his body has been swapped with Manami's. Both are confused and try everything to get back to normal, but nothing works. They are forced to desperately exchange information about their families, friends, club activities, etc. in order to play the role of each other.
Having lost her mother at a young age, Chisato grew up with her father. She married her university classmate Mayama Yuta, who is now the heir to a large company, and was meant to lead a happy married life, but instead finds herself treated like a “housekeeper” by both Yuta and her parents-in-law. Then, one day, she witnesses her husband walking affectionately with a young woman, Mitsui Runa. When finding out he betrayed her, she explodes with anger at Yuta, but a struggle with Yuta leads to her getting hit by a car. When Chisato awakens in the hospital, she discovers she’s actually been reincarnated as Runa, and thus, she vows to dedicate her new life to getting revenge on Yuta.
Having lost her mother at a young age, Chisato grew up with her father. She married her university classmate Mayama Yuta, who is now the heir to a large company, and was meant to lead a happy married life, but instead finds herself treated like a “housekeeper” by both Yuta and her parents-in-law.
Then, one day, she witnesses her husband walking affectionately with a young woman, Mitsui Runa. When finding out he betrayed her, she explodes with anger at Yuta, but a struggle with Yuta leads to her getting hit by a car. When Chisato awakens in the hospital, she discovers she’s actually been reincarnated as Runa, and thus, she vows to dedicate her new life to getting revenge on Yuta.
Then, one day, she witnesses her husband walking affectionately with a young woman, Mitsui Runa. When finding out he betrayed her, she explodes with anger at Yuta, but a struggle with Yuta leads to her getting hit by a car. When Chisato awakens in the hospital, she discovers she’s actually been reincarnated as Runa, and thus, she vows to dedicate her new life to getting revenge on Yuta.
People gather at a split-level flat on a backstreet of Roppongi, Tokyo, men pay ¥20,000, women ¥1,000 and couples ¥5,000 apiece to spend the hours of midnight to 5 a.m. at a sex party. A moody Neet guy empties out his bank account for this night of pleasure, and a bespectacled college student who at first impresses as mousy and shy join the party. Presiding over this orgy are a jaded manager and bartender who explain and enforce three simple rules: Take showers prior to sex, use protection and respect the wishes of the women. Most dangerously, the Neet guy is falling quietly and hard for the student, who reveals herself as the horniest of all, while never quite breaking out of her shell.
After the death of her parents, Joo Ah Ran plots to ruin the family that destroyed hers. She seduces and marries the son of her enemy, Shin Hyun Woo, who discovers her plan belatedly. With a new face, courtesy of plastic surgery after meeting with a car accident, he decides to exact his own revenge upon her.
Having lost her mother at a young age, Chisato grew up with her father. She married her university classmate Mayama Yuta, who is now the heir to a large company, and was meant to lead a happy married life, but instead finds herself treated like a “housekeeper” by both Yuta and her parents-in-law. Then, one day, she witnesses her husband walking affectionately with a young woman, Mitsui Runa. When finding out he betrayed her, she explodes with anger at Yuta, but a struggle with Yuta leads to her getting hit by a car. When Chisato awakens in the hospital, she discovers she’s actually been reincarnated as Runa, and thus, she vows to dedicate her new life to getting revenge on Yuta.
Having lost her mother at a young age, Chisato grew up with her father. She married her university classmate Mayama Yuta, who is now the heir to a large company, and was meant to lead a happy married life, but instead finds herself treated like a “housekeeper” by both Yuta and her parents-in-law. Then, one day, she witnesses her husband walking affectionately with a young woman, Mitsui Runa. When finding out he betrayed her, she explodes with anger at Yuta, but a struggle with Yuta leads to her getting hit by a car. When Chisato awakens in the hospital, she discovers she’s actually been reincarnated as Runa, and thus, she vows to dedicate her new life to getting revenge on Yuta.
Having lost her mother at a young age, Chisato grew up with her father. She married her university classmate Mayama Yuta, who is now the heir to a large company, and was meant to lead a happy married life, but instead finds herself treated like a “housekeeper” by both Yuta and her parents-in-law. Then, one day, she witnesses her husband walking affectionately with a young woman, Mitsui Runa. When finding out he betrayed her, she explodes with anger at Yuta, but a struggle with Yuta leads to her getting hit by a car. When Chisato awakens in the hospital, she discovers she’s actually been reincarnated as Runa, and thus, she vows to dedicate her new life to getting revenge on Yuta.
Having lost her mother at a young age, Chisato grew up with her father. She married her university classmate Mayama Yuta, who is now the heir to a large company, and was meant to lead a happy married life, but instead finds herself treated like a “housekeeper” by both Yuta and her parents-in-law. Then, one day, she witnesses her husband walking affectionately with a young woman, Mitsui Runa. When finding out he betrayed her, she explodes with anger at Yuta, but a struggle with Yuta leads to her getting hit by a car. When Chisato awakens in the hospital, she discovers she’s actually been reincarnated as Runa, and thus, she vows to dedicate her new life to getting revenge on Yuta.
Having lost her mother at a young age, Chisato grew up with her father. She married her university classmate Mayama Yuta, who is now the heir to a large company, and was meant to lead a happy married life, but instead finds herself treated like a “housekeeper” by both Yuta and her parents-in-law. Then, one day, she witnesses her husband walking affectionately with a young woman, Mitsui Runa. When finding out he betrayed her, she explodes with anger at Yuta, but a struggle with Yuta leads to her getting hit by a car. When Chisato awakens in the hospital, she discovers she’s actually been reincarnated as Runa, and thus, she vows to dedicate her new life to getting revenge on Yuta.
Having lost her mother at a young age, Chisato grew up with her father. She married her university classmate Mayama Yuta, who is now the heir to a large company, and was meant to lead a happy married life, but instead finds herself treated like a “housekeeper” by both Yuta and her parents-in-law. Then, one day, she witnesses her husband walking affectionately with a young woman, Mitsui Runa. When finding out he betrayed her, she explodes with anger at Yuta, but a struggle with Yuta leads to her getting hit by a car. When Chisato awakens in the hospital, she discovers she’s actually been reincarnated as Runa, and thus, she vows to dedicate her new life to getting revenge on Yuta.
Having lost her mother at a young age, Chisato grew up with her father. She married her university classmate Mayama Yuta, who is now the heir to a large company, and was meant to lead a happy married life, but instead finds herself treated like a “housekeeper” by both Yuta and her parents-in-law. Then, one day, she witnesses her husband walking affectionately with a young woman, Mitsui Runa. When finding out he betrayed her, she explodes with anger at Yuta, but a struggle with Yuta leads to her getting hit by a car. When Chisato awakens in the hospital, she discovers she’s actually been reincarnated as Runa, and thus, she vows to dedicate her new life to getting revenge on Yuta.
Having lost her mother at a young age, Chisato grew up with her father. She married her university classmate Mayama Yuta, who is now the heir to a large company, and was meant to lead a happy married life, but instead finds herself treated like a “housekeeper” by both Yuta and her parents-in-law. Then, one day, she witnesses her husband walking affectionately with a young woman, Mitsui Runa. When finding out he betrayed her, she explodes with anger at Yuta, but a struggle with Yuta leads to her getting hit by a car. When Chisato awakens in the hospital, she discovers she’s actually been reincarnated as Runa, and thus, she vows to dedicate her new life to getting revenge on Yuta.
Having lost her mother at a young age, Chisato grew up with her father. She married her university classmate Mayama Yuta, who is now the heir to a large company, and was meant to lead a happy married life, but instead finds herself treated like a “housekeeper” by both Yuta and her parents-in-law. Then, one day, she witnesses her husband walking affectionately with a young woman, Mitsui Runa. When finding out he betrayed her, she explodes with anger at Yuta, but a struggle with Yuta leads to her getting hit by a car. When Chisato awakens in the hospital, she discovers she’s actually been reincarnated as Runa, and thus, she vows to dedicate her new life to getting revenge on Yuta.
Having lost her mother at a young age, Chisato grew up with her father. She married her university classmate Mayama Yuta, who is now the heir to a large company, and was meant to lead a happy married life, but instead finds herself treated like a “housekeeper” by both Yuta and her parents-in-law. Then, one day, she witnesses her husband walking affectionately with a young woman, Mitsui Runa. When finding out he betrayed her, she explodes with anger at Yuta, but a struggle with Yuta leads to her getting hit by a car. When Chisato awakens in the hospital, she discovers she’s actually been reincarnated as Runa, and thus, she vows to dedicate her new life to getting revenge on Yuta.
