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The Reason My Boyfriend Married My Older Sister

私の彼が姉の夫になった理由 ‧ Drama ‧ 2025
Everything was going well—love, work, life. Until that day arrived.

Miyata Aiko works at an apparel store. Though she lost her parents young, she’s spent her days happily surrounded by her kind older sister, Saeko, and childhood friend Yoshimura Yuma, a doctor. Aiko is dating Yuma, but hasn’t had the courage to tell Saeko.

As her 25th birthday approaches, Aiko wonders if Yuma might propose, but on her way home one day, someone pushes her down a flight of stairs. She loses consciousness, and when she wakes up… Yuma is married to Saeko. On top of that, Aiko loses a major career opportunity. From that moment on, she’s swept into a tragedy beyond anything she could have imagined. Behind it all, a certain person’s hidden motives begin to surface…
Recommended by 73n5h1k015h173
Everything was going well—love, work, life. Until that day arrived.

Miyata Aiko works at an apparel store. Though she lost her parents young, she’s spent her days happily surrounded by her kind older sister, Saeko, and childhood friend Yoshimura Yuma, a doctor. Aiko is dating Yuma, but hasn’t had the courage to tell Saeko.

As her 25th birthday approaches, Aiko wonders if Yuma might propose, but on her way home one day, someone pushes her down a flight of stairs. She loses consciousness, and when she wakes up… Yuma is married to Saeko. On top of that, Aiko loses a major career opportunity. From that moment on, she’s swept into a tragedy beyond anything she could have imagined. Behind it all, a certain person’s hidden motives begin to surface…
Recommended by 73n5h1k015h173
Everything was going well—love, work, life. Until that day arrived.

Miyata Aiko works at an apparel store. Though she lost her parents young, she’s spent her days happily surrounded by her kind older sister, Saeko, and childhood friend Yoshimura Yuma, a doctor. Aiko is dating Yuma, but hasn’t had the courage to tell Saeko.

As her 25th birthday approaches, Aiko wonders if Yuma might propose, but on her way home one day, someone pushes her down a flight of stairs. She loses consciousness, and when she wakes up… Yuma is married to Saeko. On top of that, Aiko loses a major career opportunity. From that moment on, she’s swept into a tragedy beyond anything she could have imagined. Behind it all, a certain person’s hidden motives begin to surface…
Recommended by 73n5h1k015h173
The story begins when Riko, a temporary worker, is suddenly fired from her company. Pushed to the brink, Riko slips on the stairs on her way home and is saved by a handsome, unfamiliar office worker, Tsutomu.

At the lowest point of her despair, she meets Tsutomu, who is high-spec and has a laid-back demeanor. She is persuaded to go out to dinner and then to a hotel... This encounter shakes up Riko's life, and she is dragged into a quagmire of love and desire.

Meanwhile, Takuma, an unsuccessful band member whose live-in girlfriend supports him financially as a "himo" is living a carefree life, but he harbors a secret that he cannot reveal even to her.
Recommended by 73n5h1k015h173
Rino is a talented cook, and her husband Keita is kind and caring. Together, they appear to live a happy married life. But on the night of their wedding anniversary, everything falls apart when Rino receives a livestream video. In the video, a masked man, her husband, is intimately involved with an unfamiliar woman.

After discovering his betrayal, Rino storms to the scene of the affair and, in a fit of rage, repeatedly stabs Keita. However, she is counterattacked by his mistress, Elena, and loses her own life as well. When she opens her eyes again, she finds herself back on the very day she first learned of her husband's infidelity.

Determined to take revenge on both Keita and Elena, Rino tries every method she can think of. Yet each attempt ends in her death, only for time to rewind once more. Why is she being sent back? Was there something wrong with her revenge? As she becomes trapped in an endless cycle of death and repetition, Rino gradually uncovers a shocking truth.
Recommended by 73n5h1k015h173
Togo Jun and Mishima Ran, estranged sisters who had a falling out over a man, are reunited following their mother's death. The man, Ritsu, was Jun's boyfriend and is now the husband of Ran. The three have wound up living together under one roof.
Recommended by 73n5h1k015h173
Everything was going well—love, work, life. Until that day arrived.

Miyata Aiko works at an apparel store. Though she lost her parents young, she’s spent her days happily surrounded by her kind older sister, Saeko, and childhood friend Yoshimura Yuma, a doctor. Aiko is dating Yuma, but hasn’t had the courage to tell Saeko.

As her 25th birthday approaches, Aiko wonders if Yuma might propose, but on her way home one day, someone pushes her down a flight of stairs. She loses consciousness, and when she wakes up… Yuma is married to Saeko. On top of that, Aiko loses a major career opportunity. From that moment on, she’s swept into a tragedy beyond anything she could have imagined. Behind it all, a certain person’s hidden motives begin to surface…
Recommended by 73n5h1k015h173
Everything was going well—love, work, life. Until that day arrived.

Miyata Aiko works at an apparel store. Though she lost her parents young, she’s spent her days happily surrounded by her kind older sister, Saeko, and childhood friend Yoshimura Yuma, a doctor. Aiko is dating Yuma, but hasn’t had the courage to tell Saeko.

As her 25th birthday approaches, Aiko wonders if Yuma might propose, but on her way home one day, someone pushes her down a flight of stairs. She loses consciousness, and when she wakes up… Yuma is married to Saeko. On top of that, Aiko loses a major career opportunity. From that moment on, she’s swept into a tragedy beyond anything she could have imagined. Behind it all, a certain person’s hidden motives begin to surface…
Recommended by 73n5h1k015h173
Everything was going well—love, work, life. Until that day arrived.

Miyata Aiko works at an apparel store. Though she lost her parents young, she’s spent her days happily surrounded by her kind older sister, Saeko, and childhood friend Yoshimura Yuma, a doctor. Aiko is dating Yuma, but hasn’t had the courage to tell Saeko.

As her 25th birthday approaches, Aiko wonders if Yuma might propose, but on her way home one day, someone pushes her down a flight of stairs. She loses consciousness, and when she wakes up… Yuma is married to Saeko. On top of that, Aiko loses a major career opportunity. From that moment on, she’s swept into a tragedy beyond anything she could have imagined. Behind it all, a certain person’s hidden motives begin to surface…
Recommended by 73n5h1k015h173
Aiko had left her career behind to focus on her family and was living what seemed to be a happy married life. However, she discovers that her husband, Seiichi, who works for a prestigious company, has been having an affair. Believing that he would eventually return to her, Aiko endures the pain and continues their marriage. But then she uncovers a shocking truth, one even more devastating than the betrayal of infidelity itself.

After becoming pregnant, Aiko resolves to raise the child on her own. Determined to focus solely on her own happiness and that of her child, she begins to take control of her future. Meanwhile, Seiichi comes to realize both the depth of his love for Aiko and the foolishness of his actions. Hoping for a second chance, he struggles to make amends and rebuild what was lost.
Recommended by 73n5h1k015h173
Everything was going well—love, work, life. Until that day arrived.

Miyata Aiko works at an apparel store. Though she lost her parents young, she’s spent her days happily surrounded by her kind older sister, Saeko, and childhood friend Yoshimura Yuma, a doctor. Aiko is dating Yuma, but hasn’t had the courage to tell Saeko.

As her 25th birthday approaches, Aiko wonders if Yuma might propose, but on her way home one day, someone pushes her down a flight of stairs. She loses consciousness, and when she wakes up… Yuma is married to Saeko. On top of that, Aiko loses a major career opportunity. From that moment on, she’s swept into a tragedy beyond anything she could have imagined. Behind it all, a certain person’s hidden motives begin to surface…
Recommended by 73n5h1k015h173
Everything was going well—love, work, life. Until that day arrived.

Miyata Aiko works at an apparel store. Though she lost her parents young, she’s spent her days happily surrounded by her kind older sister, Saeko, and childhood friend Yoshimura Yuma, a doctor. Aiko is dating Yuma, but hasn’t had the courage to tell Saeko.

As her 25th birthday approaches, Aiko wonders if Yuma might propose, but on her way home one day, someone pushes her down a flight of stairs. She loses consciousness, and when she wakes up… Yuma is married to Saeko. On top of that, Aiko loses a major career opportunity. From that moment on, she’s swept into a tragedy beyond anything she could have imagined. Behind it all, a certain person’s hidden motives begin to surface…
Recommended by 73n5h1k015h173
Everything was going well—love, work, life. Until that day arrived.

Miyata Aiko works at an apparel store. Though she lost her parents young, she’s spent her days happily surrounded by her kind older sister, Saeko, and childhood friend Yoshimura Yuma, a doctor. Aiko is dating Yuma, but hasn’t had the courage to tell Saeko.

As her 25th birthday approaches, Aiko wonders if Yuma might propose, but on her way home one day, someone pushes her down a flight of stairs. She loses consciousness, and when she wakes up… Yuma is married to Saeko. On top of that, Aiko loses a major career opportunity. From that moment on, she’s swept into a tragedy beyond anything she could have imagined. Behind it all, a certain person’s hidden motives begin to surface…
Recommended by 73n5h1k015h173
•two sisters rivalling each other
•one sister is a traitor to her younger sister
•the sister who wishes misfortune on her sister
•blood boiling dramas
Recommended by Bingeul bingeul
Everything was going well—love, work, life. Until that day arrived. Miyata Aiko works at an apparel store. Though she lost her parents young, she’s spent her days happily surrounded by her kind older sister, Saeko, and childhood friend Yoshimura Yuma, a doctor. Aiko is dating Yuma, but hasn’t had the courage to tell Saeko. As her 25th birthday approaches, Aiko wonders if Yuma might propose, but on her way home one day, someone pushes her down a flight of stairs. She loses consciousness, and when she wakes up… Yuma is married to Saeko. On top of that, Aiko loses a major career opportunity. From that moment on, she’s swept into a tragedy beyond anything she could have imagined. Behind it all, a certain person’s hidden motives begin to surface…
Recommended by 73n5h1k015h173
The Reason My Boyfriend Married My Older Sister (2025) poster

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