The Reason My Boyfriend Married My Older Sister

Drama

70%
The Reason My Boyfriend Married My Older Sister
The Reason My Boyfriend Married My Older Sister

Overview:

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.

Created by:

Status:

Ended

Language:

Japanese

First air date:

8/7/2025

Last air date:

9/25/2025

Key words:

  • revenge
  • based on manga

Seasons

Season 1

Season 1

8 Episodes

Cast

Shiori Akita

Shiori Akita

~ as ~

Aiko Miyata

Takuya Kageyama

~ as ~

Yuma Yoshimura

Riho Takada

Riho Takada

~ as ~

Saeko Miyata

Masashi Ikeda

Masashi Ikeda

~ as ~

Takatoshi Makino

Hinako Kitano

Hinako Kitano

~ as ~

Mai Yamaoka

Mariko Akama

Mariko Akama

~ as ~

Yuriko Yoshimura

Tomomi Maruyama

Tomomi Maruyama

~ as ~

Masaki Yoshimura

View full cast & crew
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