It is the story of an old woman, having gone through multiple world altering tragedies and just wants to live out the rest of her days in peace, sipping martinis on tropical beaches.
Alas, the world doesn't like people who have her level of power, staying idle.

This is the story of her being pulled out of retirement and thrust into babysitting the timeline, and she is not happy!

This is not an SI. It is an OC character with the power of, you guessed it, Hydrokinesis.

It was previously a snippet that has evolved into a full fic now.