A business that provides internet access (often with private booths, seating, and drinks); commonly used for browsing, reading manga, or staying overnight cheaply.
終電を逃したのでネットカフェに泊まった。
I missed the last train, so I stayed overnight at a net cafe.
友達とネットカフェでマンガを読んだ。
I read manga with a friend at an internet cafe.
そのエリアには24時間営業のネットカフェが多い。
There are many 24-hour internet cafes in that area.