# I Abandoned My Engagement Because My Sister is a Tragic Heroine, but Somehow I Became Entangled with a Righteous Prince (Manga) Vol. 4

Canonical: https://www.bookquiver.com/fuyutsuki-koki/i-abandoned-my-engagement-because-my-sister-is-a-tragic-heroine-but-somehow-i-became-entangled-with-a-righteous-prince-manga-vol-4/9798895616802

![I Abandoned My Engagement Because My Sister is a Tragic Heroine, but Somehow I Became Entangled with a Righteous Prince (Manga) Vol. 4](https://quivercdn.com/covers/seven-seas/fuyutsuki-koki/i-abandoned-my-engagement-because-my-sister-is-a-tragic-heroine-but-somehow-i-became-entangled-with-a-righteous-prince-manga-vol-4_979-88-9561-680-2.jpg?v=2026-05-29%2002%3A36%3A50)

- Book: [I Abandoned My Engagement Because My Sister is a Tragic Heroine, but Somehow I Became Entangled with a Righteous Prince (Manga) Vol. 4](https://www.bookquiver.com/fuyutsuki-koki/i-abandoned-my-engagement-because-my-sister-is-a-tragic-heroine-but-somehow-i-became-entangled-with-a-righteous-prince-manga-vol-4) ([I Abandoned My Engagement Because My Sister is a Tragic Heroine, but Somehow I Became Entangled with a Righteous Prince (Manga) Vol. 4.md](https://www.bookquiver.com/fuyutsuki-koki/i-abandoned-my-engagement-because-my-sister-is-a-tragic-heroine-but-somehow-i-became-entangled-with-a-righteous-prince-manga-vol-4.md))
- Authors: [Fuyutsuki Koki](https://www.bookquiver.com/fuyutsuki-koki), [Masuke Mawata](https://www.bookquiver.com/masuke-mawata), [Haduki Futaba](https://www.bookquiver.com/haduki-futaba)
- Publisher: seven_seas
- ISBN: 979-88-9561-680-2
- Pages: 172
- Published: 2025-09-23
- Language: en_US
- Binding: Softcover

## Description

ARE THEY THE LIFE—OR DEATH—OF THE PARTY?! While secretly investigating Jill and Duke Berklein, Leia discovers that the duke is using Jill for her skills with poison magic. Not only that, but...