[The Gunma Forest] │ ├── Mitsuhiko (Looking for fireflies) │ ├── Conan & Haibara (On a rescue mission) │ └── Ki'ichiro Numabuchi (Escaped Serial Killer & Former Black Org Agent) The Return of Ki'ichiro Numabuchi
In some international releases (such as the "un-cut" or "split" versions), this episode is numbered as Episode 312 Detective Conan Wiki | Fandom 💡 Key Details Manga Reference:
Fans looking to stream the high-quality version of Episode 290 can check the following sources:
The faded cel-animation colors of the late 1990s and early 2000s are brightened and balanced for modern OLED and LED screens. Watch Detective Conan Remastered Episode 290 fo...
The offers improved visuals, re-scanned film sources, and enhanced sound quality — making it feel fresh even for longtime viewers.
The shift from standard definition to HD makes a massive difference in the visual clarity of the character designs and action sequences. As Detective Conan continues to air new episodes in 2026 (reaching over 1200 episodes), revisiting early gems like Episode 290 in HD is the perfect way to appreciate how far the series has come.
Even if you’ve seen Episode 290 before, the remastered edition offers a new experience: [The Gunma Forest] │ ├── Mitsuhiko (Looking for
for you to watch.
The escaped convict in the forest is none other than , a terrifying assassin whom Conan previously encountered during the "Naniwa Serial Murder Case" (Episode 118). Numabuchi is a twitchy, feral individual who has been on the run from the law, but his true history is far deeper than the local police realize. Haibara’s Chilling Revelation
. It concludes the two-part "Disappearing Mitsuhiko Case," where Mitsuhiko Tsuburaya goes missing during a solo trip to a forest in Gunma Prefecture. 🎬 Episode Summary As Detective Conan continues to air new episodes
The missing member of the Detective Boys.
The original episode aired in the early 2000s, utilizing a 4:3 aspect ratio and standard-definition cel animation processing. The remastered version cleans up grain, sharpens character outlines, and enhances the color palette for modern 1080p and 4K screens.