

Episode 21: “Paradox Meltdown”
- 21 of 24
- August 23, 2011
- 24 min
- Aired
Contents
| Series | Steins;Gate |
|---|---|
| Episode | 21 of 24 |
| Japanese | 因果律のメルト |
| Original air date | August 23, 2011 |
| Episode length | 24 min |
| Studio | White Fox |
| Previous episode | Episode 20: “Finalize Apoptosis” |
| Next episode | Episode 22: “Being Meltdown” |
| Streaming | Crunchyroll, Hulu |
“Paradox Meltdown” is episode 21 of the anime Steins;Gate. It first aired on August 23, 2011.
Summary
The summary below describes what happens in this episode.
He attempts to sacrifice himself to save Mayuri, but she dies trying to save him instead. Kurisu learns about Mayuri's fate in the Beta World Line.
Characters in this episode
Music in this episode
- OP 1“Hacking to the Gate” — Kanako ItouAnimeThemes
Where to watch
Streaming services that list Steins;Gate. What you can watch depends on your country. Acino does not host any video; each link leads to the service's own page.
Episode guide
All 24 episodes → · 23 of 24 episodes have a summary
About the series

Steins;Gate centers on Rintarou Okabe, a self-styled mad scientist whose experiments lead to an unprecedented discovery about communication across time. Its story combines scientific experimentation, psychological tension, suspense, and the consequences of changing history, while focusing on the relationships among…
Read the article →References
- “Steins;Gate”. Kitsu. Retrieved October 22, 2026.
- “Steins;Gate”. MyAnimeList. Retrieved October 27, 2026.
- “Steins;Gate”. AnimeThemes. Retrieved October 23, 2026.
Episode titles and air dates come from Kitsu. The summary is written by Acino with AI assistance and checked so that it does not copy other sites.