In 2050, Earth has become a dry and desolate place. Fighter pilot Nova is forced to travel back in time to prevent a devastating environmental disaster, however an unforeseen side-effect of time travel makes Nova young again and she crash lands into 2025 as a twelve-year old. Nobody seems to take her and her mission seriously, except for Nas - a neglected teen who tries to keep..爱情就像一场赌博，赌注是青春，筹码是幸福。