

Episode 21: “A Hundred Billion Stars, a Hundred Billion Lights 9: Party Night”
- 21 of 24
- September 26, 1998
- 26 min
- Aired
| Series | Legend of the Galactic Heroes Gaiden |
|---|---|
| Episode | 21 of 24 |
| Japanese | 千億の星, 千億の光 パーティーの夜 |
| Original air date | September 26, 1998 |
| Episode length | 26 min |
| Studio | K-Factory |
| Previous episode | Episode 20: “A Hundred Billion Stars, a Hundred Billion Lights 8: The New Earl” |
| Next episode | Episode 22: “A Hundred Billion Stars, a Hundred Billion Lights 10: Truth's Daughter” |
| Streaming | HIDIVE |
“A Hundred Billion Stars, a Hundred Billion Lights 9: Party Night” is episode 21 of the anime Legend of the Galactic Heroes Gaiden. It first aired on September 26, 1998.
Summary
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Episode guide
About the series

Legend of the Galactic Heroes Gaiden is a 1998 Japanese anime original video animation based on the novel by Yoshiki Tanaka. It is animated by K-Factory. It aired from February 9, 1998 to September 26, 1998, with 24 episodes.
Read the article →References
- “Legend of the Galactic Heroes Gaiden”. Kitsu. Retrieved October 24, 2026.
- “Ginga Eiyuu Densetsu Gaiden”. MyAnimeList. Retrieved October 24, 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.