Situ was the only Goddess of War in the Realm of the Gods. In the final moments of the Battle of Gods and Demons, her Divine Consciousness shattered and scattered across 3000 worlds. She could only regain her Divine Power piece by piece by completing her missions to save the yandere villains of different worlds.
It was already hard to be a villain, but it was much harder to save a villain. Every day, Situ would either sacrifice herself or try to resist the urge to assassinate the villain.
Only when Situ had completed most of her missions and was planning to leave soon did she realize something— at some point, she had fallen into the pit that the villains dug, and there was no way to climb out.
Tsk, a little white bunny turning into a big gray wolf; why was the story not following the script?