Celeste Faye has a problem that only she can solve. She has 10 years to completely change history, literally. With over 982 million lives on the line, she has to save the city from impending war with other cities, a civil war as triads wrestle for control, overcome type racism and prevent the systematic purge of over 40 different species of pokemon. Trouble is, she can't get directly involved, or so she thinks and to make matters worse, she only knows the result, not the cause of the cities destruction.

Her plan? Change the lives of key pokemon that have some role to play in the original history and hope that causes a domino effect to change things for the better. Her targets? A city leader that is way over his head, a special forces police recruit struggling to live up to his father, a student with a dangerous obsession with a taboo relationship and a trainee doctor turn gang leader. What actually happens? She changes more then she could ever imagine.

Prosperity city is getting a second chance at survival, no wait, a third chance. She didn't manage it the first time she tried.

Good thing she is a Celebi.