The Reason My Boyfriend Married My Older Sister

Drama

2025

1 Season

Series

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Episode Guide

August 7, 2025 - September 25, 2025Season 1 of The Reason My Boyfriend Married My Older Sister has 8 episodes.

Season 1 Episodes

S1 E1:

Aug 7, 202523 min

Everything was going well in both her love life and her career. That was until that day came. Miyata Aiko (Akita Shiori), who works at an apparel store, lost both her parents at a young age, but lived a happy life with her kind older sister Saeko (Takada Riho) and her childhood friend and boyfriend Yoshimura Yuma (Kageyama Takuya), a doctor. Then, just before her 25th birthday, Aiko is told by Yuma, "I have something important to tell you," and her heart starts beating fast, thinking, "Maybe he's going to propose to me?" However, one day, on her way home, someone pushes her from behind, causing her to fall down the stairs and fall unconscious! When she wakes up, she learns an unbelievable truth...

Series info

After a suspicious fall leaves her in a coma, Aiko wakes to a nightmare: her boyfriend is now married to her sister, and her promising career is gone. Trapped in a web of betrayal and secrets, she sets out to uncover the truth in this twisted tale of love, loss, and revenge.

Ratings

TMDB: 7.0

Original Language

Japanese

Release Date

August 7, 2025

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The Reason My Boyfriend Married My Older Sister

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The Reason My Boyfriend Married My Older Sister

Episode Guide

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