Fifty years ago, Haru was diving in the sea as part of a scientific experiment; but something went terribly wrong, and a shockwave both decimated the area, and caused Haru to slip into a coma. In the present, Haru awakens as an old man into a vastly-changed society. People, no longer content with reality, have turned to a metaphysical reality called the Metal to fulfill their desires – and it’s up to "cyber divers" to save these souls when something goes wrong. With the help of the cheerful girl Minamo and the android Holon, Haru strives to become a cyber diver, discover the secrets of the Metal and ultimately discover the reason why his life has slipped away.
"I have only abandoned my body, I still live here" - are the words emailed to friends of Chisa, several days after her death by suicide. As Lain delves deeper into the world of the "Wired" (also known as the internet), the line between it and reality becomes more and more unclear. Close the world, open the nExt.
The reason for my recommendation is that both anime embrace the concept of virtuality: what is real and what is artificial? Additionally, both have complex plots involving an abstract information network. At the end I was left with more questions than answers!
On the other hand, SEL has a dark/mystery tone whereas RD follows a rather slow-paced plot with quite a few filler eps and millions of tongue-in-cheek moments (even fanservice!).
In a futuristic world, the virtual world is merely a layer on top of reality; within it, cyberpets are abundant and information is plentiful, and it is only visible by wearing special cyberglasses. In Daikoku City, this cyberspace is behaving strangely: cyberpets are going missing, dark entities known as "the Illegal" roam obsolete space that shouldn’t exist, and a large pink antivirus program known as Satchii wanders the streets, attacking both virus and pets alike. Sixth grader Yuko Okonogi has just moved to Daikoku City, and after cyberdetective children help her rescue her lost dog, she soon joins the others in a search for the truth behind these strange occurances.
Real Drive and Dennou Coil have similar augmented reality concepts. If you like Real Drive you will probably like Dennou coil too. The only difference is that Dennou Coil they use glasses to view all the virtual stuff while here they have a cyber brain. Information menus pop up in air just like in RD. And Real Drive is also slice-of-life. Plus they also have some mystery going on in Dennou Coil, which is like RD's care solving.