Den-noh Coil

Alt title: Dennou Coil

If you're looking for manga similar to Den-noh Coil, you might like these titles.

Corrector Yui Ver.2

Corrector Yui Ver.2

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Corrector Yui (Kia ASAMIYA)

Corrector Yui (Kia ASAMIYA)

In the near future, the internet has evolved into ComNet, a virtual reality world where people can play to their hearts' content. However, a malicious computer known as Grosser is causing chaos in the realm, sending dastardly programs to wreak havoc. Young Yui was just a typical girl with a not-so-typical illiteracy with computers, until a program known as IR recruited her to become a Corrector and fight against Grosser's evil doings! Armed with elemental suits, Yui will traverse feudal Japan, a land of fairytales and a number of other virtual worlds in an attempt to find the other Corrector programs and foil Grosser's gang!

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Shoujo Kesshou Kokoro Jikaru

Shoujo Kesshou Kokoro Jikaru

Year 20xx. In a high-tech future, where people are divided into categories according to their birthstone, there are two important things: Box, the immense virtual reality that manages the data of the world population, and Logiste, a fierce dance competition, sometimes even dangerous, whose champions are considered real stars. To Kokoro Koyomi, however, all this is precluded because of her strict father, who forbids her to even talk about it. One day, she secretly gains access to Box, but remains stuck in the virtual reality because of a bug.

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Cyber Dorothy

Cyber Dorothy

A popular idol, Haruki, is the star of a commercial for an immersive virtual reality game called “Yellow Brick Road”. To help with the promotion of the game, his manager persuades him to enter the game as a “guardian” and defeat a band of thieves. However, Haruki encounters an adventure he never could have imagined!

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World of Hartz

World of Hartz

Han has always had trouble relating to women, but when he plays a new game called World of Hartz he finds himself involved in a totally immersive gaming experience that turns him into an online hero and an instant hit with all the virtual ladies. His growing reputation as the best Hartz player leads to a job offer from the game developer. Once inside, Han finds out that there is a lot more going on than fun, games, and chasing girls. A web of power, politics, and international conspiracies plus a game so addictive that it destroys lives add up to the ultimate challenge for Han as he fights to save his friends and his world.

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Kami-sama no Koibito

Kami-sama no Koibito

It's 2029 and virtual reality has taken the center stage in work and in play. Jin Tarou toils away at a convenience store attached to an university hospital, supplementing his income while he tries to get his virtual reality server up and running. His sole consolation is a young resident, Hiiragi Maika, who comes in and orders the same lunch and drink every day. But when he was doing a routine maintenance check on his server, he finds Maika logged in and playing, and working as a waitress?

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Reality Check

Reality Check

Tenth grader and deep geek Collin Meeks thinks he is a very smart boy-- that is until he purchases a True Virtual Reality (TVR) Helmet, the most important tool for plugging your mind into the world wide Virtual Internet System (the VIS). What Collin expects is total VIS access. What he forgets is that he is a cat owner!When tenth-grader Collin Meeks is at school, his cat, Catreece, puts on her owner's virtual reality helmet, assumes the identity of a cute teenager, and surfs the Virtual Internet System while Collin is at school.

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Summer Wars: King Kazuma vs. Queen Ozu

Summer Wars: King Kazuma vs. Queen Ozu

Kazuma isn't physically strong in real life, but in OZ, a virtual reality world that touches every corner of the globe, the boy is a fighting champion with his avatar, King Kazma. He's defeated countless foes online – often resulting in classroom bullying – and now has his eyes on winning the famed OZ Martial Arts Championship. With the help of friend Wataru's informational network, Kazuma might just be able to claim the ultimate prize: a rare King's Belt avatar item, and a cash reward. That is, if he can beat the mysterious and unbeatable 'Queen'...

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9 no Puzzle to Mahou Tsukai

9 no Puzzle to Mahou Tsukai

In the near future, a BCI controller that reads your brain signals and allows your consciousness to dive into the virtual world of the Internet has become extremely popular. Katsuro, who was arrested for a certain crime, was adopted by police officer Yumeji and serves his prison term while living with his adoptive sister, Rin. However, at the request of his adoptive father, Katsuro investigates Internet crimes in exchange for reducing his punishment, bit by bit.

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Corrector Yui

Corrector Yui

In the near future, the internet has evolved into ComNet, a virtual reality world where people can play to their hearts' content. However, a malicious computer known as Grosser is causing chaos in the realm, sending dastardly programs to wreak havoc. Young Yui was just a typical girl with a not-so-typical illiteracy with computers, until a program known as IR recruited her to become a Corrector and fight against Grosser's evil doings! Armed with elemental suits, Yui will traverse feudal Japan, a land of fairytales and a number of other virtual worlds in an attempt to find the other Corrector programs and foil Grosser's gang!

I agree