The Reason My Boyfriend Married My Older Sister poster

The Reason My Boyfriend Married My Older Sister

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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.

  • Release date
  • August 7, 2025
  • TMDB score
  • 7
1 seasons Drama Creator: Erika Toyama

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Cast

Shiori Akita photo Shiori Akita Aiko Miyata Takuya Kageyama Yuma Yoshimura Riho Takada photo Riho Takada Saeko Miyata Masashi Ikeda photo Masashi Ikeda Takatoshi Makino Hinako Kitano photo Hinako Kitano Mai Yamaoka Mariko Akama photo Mariko Akama Yuriko Yoshimura Tomomi Maruyama photo Tomomi Maruyama Masaki Yoshimura

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Episodes

Season 18 episodesSeason page

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