You Weren't My Sister, but My Fiancée?!

お前妹じゃなくて許嫁だったのかよ!?; Omae Imouto Janakute Iinazuke Datta no ka yo; Ты была не моей сестрой, а моей невестой!?

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Authors: Miraijin a, Yunyanko

Status:Ongoing

Genres: Romance Comedy School life Slice of Life

Rating: 7.11/10 (37 votes)

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Summary

Humanity, love your little sister. I miss the time when her younger sister Kana was fond of me. Takashi Shiina lamented the current days when he was often ignored. One day, his parents cut out a shocking story. Surprisingly, he wasn't his real son... but he was his sister Kana's fiancée! ? The definitive version of Reiwa's younger sister manga!

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Chapter List

First Chapter

New Chapter

Jan 12, 2026

Jan 11, 2026

Jan 07, 2026

Jan 04, 2026

Dec 23, 2025

Dec 19, 2025

Dec 10, 2025

Dec 08, 2025

Dec 08, 2025

Dec 08, 2025

May 01, 2025

Apr 30, 2025

Jan 24, 2025

Chapter 20 : Vol 4 Ch 20

Jan 24, 2025

Chapter 19 : Vol 4 Ch 19

Dec 02, 2024

Chapter 19

Dec 01, 2024

Chapter 18 : Vol 3 Ch 18

Nov 23, 2024

Chapter 18

Nov 22, 2024

Chapter 17 : Vol 3 Ch 17

Nov 17, 2024

Nov 17, 2024

Oct 07, 2024

Jul 06, 2024

Jun 17, 2024

Mar 14, 2024

Vol.2 Chapter 12.5: Extra

Feb 13, 2024

Chapter 12

Dec 18, 2023

Chapter 11 : Vol 2 Ch 11

Nov 17, 2024

Chapter 11

Oct 01, 2023

Chapter 10 : Vol 2 Ch 10

Nov 17, 2024

Chapter 10

Aug 06, 2023

Chapter 9

Jul 19, 2023

Chapter 9 : Vol 2 Ch 9

Nov 17, 2024

Chapter 8

Jul 10, 2023

Chapter 8 : Vol 2 Ch 8

Nov 17, 2024

Vol.2 Chapter 7.2 : Special Chapter

Jun 30, 2023

Vol.2 Chapter 7.2: Special Chapter

Nov 17, 2024

Jun 30, 2023

Apr 29, 2023

Mar 27, 2023

Feb 26, 2023

Feb 15, 2023

Jan 25, 2023

Jan 19, 2023

Jan 19, 2023

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You Weren't My Sister, but My Fiancée?!

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