Season 1

01 The Children with Glasses Episode 112th May 2007 When Yasako and Kyoko's virtual pet dog, Densuke, goes missing, Yasako procures the assistance of a detective. 02 COIL Cyber Detective Agency Episode 219th May 2007 Yasako and Fumie ask Yasako's grandmother to cure Densuke of his potentially fatal illness. In return, Yasako must agree to an interesting, and dangerous, bargain. 03 Yuko and Yuko Episode 326th May 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 unlock the virtual being. 04 Daikoku City Heike Club Episode 42nd June 2007 A battle breaks out at school! During the commotion, Fumie steals a mysterious piece of data from Amasawa. 05 The Metabug Scramble Bus Tour Episode 59th June 2007 The Hackers' Club goes on a metabug expedition over the fringes of surrounding cyberspace lead by Isako. 06 The Red Automaton Episode 616th June 2007 Yasako and Fumie begin an investigation into Haraken and Searchmaton. Under pressure, Haraken reveals something huge to Yasako and Fumie. 07 In Action!! The COIL Detective Agency Episode 723rd June 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 take over? 08 The Summer Festival and a Duel Episode 830th June 2007 Isako hatches a risky plan, and Daichi's newly rekindled friendship with Fumie may suffer as a result. 09 Michiko-san from the Other Side Episode 97th July 2007 The kids spend a dark and stormy night telling ghost stories and playing spooky games at school. Meanwhile, Haraken has an interesting other worldly experience. 10 Kanna's Diary Episode 1014th July 2007 Following clues left by Haraken's former research partner, Haraken, Fumie, and Yasako search for any new leads. 11 Sunken! Daikoku City Episode 1121st July 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 Daichi Grows Hair Episode 1228th July 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 them? 13 The Last Plesiosaur Episode 134th August 2007 A docile illegal follows the kids on a hazardous journey through the city, driven to find more of its kind. 14 Record of a Living Being Episode 141st September 2007 Akira, Fumie's little brother, recalls the events thus far from his own perspective. Later, Haraken is warned by Nekome to stop investigating. 15 The Young Boy Beyond the Station Episode 158th September 2007 Yasako searches for the place she met 4423. Afterward, she deduces that the place was a virtual space that was deleted. 16 Isako's Hospital Room Episode 1615th September 2007 Haraken and Fumie discover early accounts from previous denno users. Later, Yasako visits her comatose brother. 17 The Final Summer Vacation Episode 1722nd September 2007 Haraken asks Isako to take him to the so-called "other world" in an effort to see if Kanna Ashihara still exists. 18 The Door to Another World Episode 1829th September 2007 Haraken barely makes it back through Isako's gateway. Tamako, fearing for his life, takes his glasses away. Meanwhile, trouble begins as a space appears behind Megabaa's shop. 19 The Dark Visitors Episode 196th October 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 Kanna and Yasako Episode 2013th October 2007 Haraken uses Kanna's glasses to sneak to the "other side." Yasako also enters with the help is Isako and Tamako. 21 The Dark Automaton Episode 2120th October 2007 Megamass is doing research on the "other side" and the effects of the den-noh coil. Isako finds herself drawn into it. 22 The Final COIL Episode 2227th October 2007 Yasako and Isako are running from Megamass. While hiding, they discover that Densuke might be able to open a stable portal. 23 The Granted Wish Episode 2310th November 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 The Children Who Throw Away Their Glasses Episode 2417th November 2007 The events surrounding Isako frighten the other parents. In an effort to keep their children safe, they confiscate their glasses, but at what cost? 25 The Kanazawa City Hazama Intersection Episode 2524th November 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 Yasako and Isako Episode 261st December 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?