My Ex’s Sister Is Mine has 42 episodes (ongoing).
No Money Production
You can watch My Ex’s Sister Is Mine online on Runotoon, in the web browser on your phone or computer. There is no app to download. Start with Episode 1.
First 10 episodes free, no sign-up
My Ex’s Sister Is Mine has 42 episodes on Runotoon so far, and new episodes are still coming. Together they run about 59 minutes. The latest episode came out on October 28, 2026.
At a manor ball, Viola Thorne catches her boyfriend Julian Lancaster cheating with Sebastian. She fakes amnesia after a fall to seek revenge. Julian dumps her on his sister Livia. Livia repeatedly risks her life for Viola, and they form an alliance. Viola is heir to a top conglomerate and exposes the traitors. Livia discovers proof Viola feigned amnesia, loses faith and tries to run. Viola holds her back, and they claim power side by side.
Yes. Its original language is English, and it has subtitles in German, Spanish, Filipino, French, Indonesian, Italian, Brazilian Portuguese, Thai, and Vietnamese. Some languages may not cover every episode yet.
