The Apocalypse's Female Side Character Feeds the Wolf

Ye Shengge transmigrates into a harem novel she once read, only to find herself cast as the villainess! From then on, she is stuck competing with the heroine in good fortune and the hero in strength. But reality soon teaches her that the heroine is no pushover, hey! One is a shameless woman who transmigrated into a villainess, and the other is an ancient divine wolf who cannot maintain human form and can only transform now and then when its luck runs high. To survive in the transformed apocalypse, the woman and wolf eventually embark on the point of no return: dual cultivation.