Kagerou Days

A story based on the popular series of songs by Jin (Shizen no Teki-P) titled Kagerou Project. Shintarou Kisaragi—a NEET who shut himself inside his room for 2 years—has been living his life normally until he met a cyber girl named Ene, who appeared in his computer screen when someone anonymously sent him a mysterious e-mail one year ago. One day, Ene had been messing with Shintaro's PC, which causes him have to go to the outside world for first time in two years.

(Source: MU)