last story wa anata e

From VNDB:

"One winter day main character logs in to Hypersense Network's cyber shopping mall to buy new memory. It is the so-called “Cyber Akihabara”. As soon as he punts in his ID and starts walking on the main street, his protocol is hijacked and screen distorts with poisonous colors. This illusion feels like a real Akihabara even though the weight of mouse and just bought memory can be felt in hands. With a lightning strike electronic machine starts to act up, and protagonist finds himself dragged into a dream-like twilight world."