BIO:

Kronika is the Keeper of Time, Architect of the Destiny of the Universe and mother of Shinnok, the Elder God of Death and Darkness, and Cetrion, the Elder God of Life and Light.

Due to Raiden's new brutal policy in crushing potential evil forces that threaten Earthrealm, with its apex at the beheading of her own son, Shinnok, she sees it as an imbalance between the forces of good and evil and seeks to force equilibrium it by erasing the timeline and rewriting a new one from the very beginning. These events would set in motion her plan to fix the time flow, creating a New Era and leading consequentially to the past merging with the present.

According to Raiden, as the Keeper of Time, Kronika is the only one capable of tampering with the forces of time to the point of present and past to collide, and also states that she has restarted the timeline many times in order to find perfection.