Upon learning of his younger sister's engagement to the prince, the protagonist recovers memories of his past life.
This is the world of the otome game his sister from his past life adored!
What's more, his current sister is, at this rate, headed straight for the villainess route, leading to the complete ruin of their family!
This is the story of an older brother who endeavors to prevent this fate.
| Published | Title | # |
|---|---|---|
 | Become a Novelist https://ncode.syosetu.com › ... I've Been Reincarnated as the Villainess' Brother, So I'll Try to Do Something About It. Author: Yasumi Seika. When the protagonist hears that his younger sister is engaged to the prince, he recalls memories from his past life. He remembers that he loved his younger sister in his past life. |
| Become a Novelist https://ncode.syosetu.com › ... I came to this site because I wanted to read historical reincarnation stories, but I also found many good stories about villainous young ladies, and I wanted to try writing one myself, but female protagonists are difficult for me... |
 | Young Champion Web https://youngchampion.jp › series I died from overwork while playing a game live and was reincarnated as Cain, a character in a girls' game. I was captivated by the overwhelming cuteness of my younger sister, Diana. However, if the game world continues as it is, my sister will... |
 | Amazon.jp https://www.amazon.co.jp › Villain... A doting brother and sister continue to dote on each other in this fantasy love story that avoids catastrophe! Includes extensively expanded content, four new spin-offs, and a bonus story at the end of the book, "Why Are Rabbits' Ears So Long?"! Akita Shoten Dokodemo Champion... |
 | pixiv Comics https://comic.pixiv.net › works He has a little sister named Caron whom he loves so much he can't take his eyes off her. But only he knows one secret: if things continue as they are, his sister will turn into a villainous young lady and die a tragic death. |
 | Become a novelist ~ Update information ~ https://narou.nar.jp › search › text... I Reincarnated as the Villainess' Brother, So I'll Try to Do Something About It. Author: Yasumi Seika. Non-genre. Serial. N3963CN. When the protagonist hears that his younger sister is engaged to the prince, he recalls memories from his past life. Here... |
 | Amazon https://www.amazon.co.jp › Engaged for reasons unknown... |
 | Kakuyomu https://kakuyomu.jp › works Volume 2 was released by Earth Star Luna on June 2, 2025. The published version contains twice as much content as the web version and has a different plot. ... My name is Saionji Ren. |
 | Comic Gardo https://comic-gardo.com › episode Her name is Charon, and she's my adorable little sister. However, if things continue as they are, she will die a tragic death. This is because this world is the same world as the RPG-style romance game I played to my heart's content in my previous life. |
 | Overlap https://over-lap.co.jp › narou Zex. The son of the Count of Foranada and Charon's older brother. A reincarnated person with memories of living as a Japanese person. Although he has an aptitude for non-elemental magic, which is despised as incompetent, he uses the knowledge from his previous life to become the world's strongest magician... |
 | Niconico Manga https://manga.nicovideo.jp › comic Updated 10/07/2025 / Volume 1 of the comic is now on sale!!! I, Zex, have a little sister. Her name is Charon, and she's the loveliest of all. However, if things continue as they are, she'll become a nemesis... |
 | amazon.co.jp https://www.amazon.co.jp › I Was Reincarnated as a Villainess... |
Yahoo! News - Yahoo! JAPAN https://news.yahoo.co.jp › articles | |
Weblio Dictionary https://www.weblio.jp › content › Villainess |