23:59

The first rule is not to break the streak.
If you do, you're dead.

The mysterious green owl of Duolingo has achieved worldwide digital ubiquity. A language learning app that initially seemed harmless, over the years has become a must-have for all citizens to survive in today's world.

A world in which completing a daily lesson is the only wild card for survival. Lose all five hearts and you are dead. Run out of experience points and you're dead.

On his twenty-first birthday, Aaron finds an old pocket watch whose hands have stopped at 23:59. That same night Aaron forgets to do his daily lesson, but the next morning everything seems normal... or so he thinks.

Time waits for no one, unless you know how to mess with it.