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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
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
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
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
Housewife Sasamoto Sawa works as a part-time supermarket cashier. One afternoon, she unconsciously pickpockets a lipstick at the supermarket. Takigawa Rikako sees a part of this. What she proposes is Sawa's assistance in setting up an alibi for her affair in exchange for her silence on that matter. Sawa obeys the demands of Rikako in order to protect her "happiness" even though she is falling apart emotionally. In the process, she meets high school teacher Kitano Yuichiro and gradually cannot stop thinking about him. Before long, she crosses a line which she should not.
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
Housewife Sasamoto Sawa works as a part-time supermarket cashier. One afternoon, she unconsciously pickpockets a lipstick at the supermarket. Takigawa Rikako sees a part of this. What she proposes is Sawa's assistance in setting up an alibi for her affair in exchange for her silence on that matter. Sawa obeys the demands of Rikako in order to protect her "happiness" even though she is falling apart emotionally. In the process, she meets high school teacher Kitano Yuichiro and gradually cannot stop thinking about him. Before long, she crosses a line which she should not.
Recommended by 73n5h1k015h173
The Reason My Boyfriend Married My Older Sister (2025) poster

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