The app is a text board website where users generally post anonymously. It's probably split into various boards with their own specific content, and /u/ (opinions/random board) may be the one that receives the most traffic.
Day 1: Edit
App is not available.
Day 2: Edit
Day 3: Edit
Day 4: Edit
Day ???: Edit
Day 19: Edit
- Obviously enough, the app is based off 4chan, but without pictures.
- Due to the popularity of the game, a real danger/u/ website has been launched.
- Through dialogue in the Miki Concert threads, it's implied that Danger/U/ is visited mostly by women.
- The name DANGER/U/ might be a reference to Sukeban Games' old name, DANGEMU. 
Community content is available under CC-BY-SA unless otherwise noted.