Detective Conan · Episode 577
The Truth Lit Up by the Fireflies
Aired Saturday, June 19, 2010 · 25 min
Filler episode. Not adapted from the manga, so it's safe to skip. The story continues in episode 578 →
Source: AnimeFillerList and MyAnimeList episode flags, 10 Nov 2026. Full filler list
Synopsis
The Detective Boys attend a firefly festival to commemorate a shinto shrine in a village. The truck soon arrives with the fireflies and they are released into the fields. Later one of the truck drivers, Tokurou Nakamine, is found murdered and three of the villagers are the prime suspects.
Synopsis excerpt via Kitsu.
Where to watch
Detective Conan episode 577 FAQ
When does Detective Conan episode 577 come out?
Detective Conan episode 577 aired on Saturday, June 19, 2010.
What time does Detective Conan episode 577 release?
Kitsu has the date but not a broadcast time for this episode. Japanese TV anime typically air in the evening or late night JST.
Where can I watch Detective Conan episode 577?
Detective Conan streams on Hulu, Crunchyroll. Availability depends on your region.