Den-noh Coil

1. S01E01The Children with GlassesMay 12, 2007—When Yasako and Kyoko's virtual pet dog, Densuke, goes missing, Yasako procures the assistance of a detective.
2. S01E02COIL Cyber Detective AgencyMay 19, 2007—Yasako and Fumie ask Yasako's grandmother to cure Densuke of his potentially fatal illness. In return, Yasako must agree to an interesting,
3. S01E03Yuko and YukoMay 26, 2007—With Densuke back, the Mojos drop him off with Isako. After freeing him from the illegal, Isako makes an enormous mistake in trying to unloc
4. S01E04Daikoku City Heike ClubJune 2, 2007—A battle breaks out at school! During the commotion, Fumie steals a mysterious piece of data from Amasawa.
5. S01E05The Metabug Scramble Bus TourJune 9, 2007—The Hackers' Club goes on a metabug expedition over the fringes of surrounding cyberspace lead by Isako.
6. S01E06The Red AutomatonJune 16, 2007—Yasako and Fumie begin an investigation into Haraken and Searchmaton. Under pressure, Haraken reveals something huge to Yasako and Fumie.
7. S01E07In Action!! The COIL Detective AgencyJune 23, 2007—Isako once again summons an illegal with the help of the Daikoku Hackers. With Yasako and Fumie working on an unrelated case, will the virus
8. S01E08The Summer Festival and a DuelJune 30, 2007—Isako hatches a risky plan, and Daichi's newly rekindled friendship with Fumie may suffer as a result.
9. S01E09Michiko-san from the Other SideJuly 7, 2007—The kids spend a dark and stormy night telling ghost stories and playing spooky games at school. Meanwhile, Haraken has an interesting other
10. S01E10Kanna's DiaryJuly 14, 2007—Following clues left by Haraken's former research partner, Haraken, Fumie, and Yasako search for any new leads.
11. S01E11Sunken! Daikoku CityJuly 21, 2007—Daichi's plan to acquire metabugs via a fish-type illegal doesn't go as planned and may endanger everyone in the virtual vicinity.
12. S01E12Daichi Grows HairJuly 28, 2007—Yasako finds a race of microscopic illegals growing on their faces that are on the brink of destruction. Can Yasako figure out a way to save
13. S01E13The Last PlesiosaurAugust 4, 2007—A docile illegal follows the kids on a hazardous journey through the city, driven to find more of its kind.
14. S01E14Record of a Living BeingSeptember 1, 2007—Akira, Fumie's little brother, recalls the events thus far from his own perspective. Later, Haraken is warned by Nekome to stop investigatin
15. S01E15The Young Boy Beyond the StationSeptember 8, 2007—Yasako searches for the place she met 4423. Afterward, she deduces that the place was a virtual space that was deleted.
16. S01E16Isako's Hospital RoomSeptember 15, 2007—Haraken and Fumie discover early accounts from previous denno users. Later, Yasako visits her comatose brother.
17. S01E17The Final Summer VacationSeptember 22, 2007—Haraken asks Isako to take him to the so-called "other world" in an effort to see if Kanna Ashihara still exists.
18. S01E18The Door to Another WorldSeptember 29, 2007—Haraken barely makes it back through Isako's gateway. Tamako, fearing for his life, takes his glasses away. Meanwhile, trouble begins as a s
19. S01E19The Dark VisitorsOctober 6, 2007—With Kyoko on the "other side", Fumie and Yasako get help from Densuke to help guide Kyoko's denno body back to her real one.
20. S01E20Kanna and YasakoOctober 13, 2007—Haraken uses Kanna's glasses to sneak to the "other side." Yasako also enters with the help is Isako and Tamako.
21. S01E21The Dark AutomatonOctober 20, 2007—Megamass is doing research on the "other side" and the effects of the den-noh coil. Isako finds herself drawn into it.
22. S01E22The Final COILOctober 27, 2007—Yasako and Isako are running from Megamass. While hiding, they discover that Densuke might be able to open a stable portal.
23. S01E23The Granted WishNovember 10, 2007—For various reasons, Nekome wants to join her brother on the other side, and the only way is to somehow convince Densuke to help.
24. S01E24The Children Who Throw Away Their GlassesNovember 17, 2007—The events surrounding Isako frighten the other parents. In an effort to keep their children safe, they confiscate their glasses, but at wha
25. S01E25The Kanazawa City Hazama IntersectionNovember 24, 2007—Desperate to save Isako, Yasako finds a pair of glasses that belonged to her grandfather and uses them to travel to the other side.
26. S01E26Yasako and IsakoDecember 1, 2007—Yasako comes face to face with the true nature of the Coil Domain and Michiko. Even with the support of her friends, can she save Isako?

Season 1 ranked & reviewed