Bloodlines Online - Chapter 45: Training

After her previous life, Lan Ke luckily received an universal trade system, and also a ruthless food waster. After initializing the universal trade, becoming a universe merchant, it was the good days of breezing disasters, face-hitting, embracing handsome men! Though as she got stronger and stronger, she stumbled upon the scary secret of the apocalypse!

- Description from Novelupdates

SSR-ranked killer Mu Hui died in an explosion, only waking up to find herself transmigrated into the body of a vicious female supporting character in a book.

Hunger, poverty, and death are the inevitable fate of those who live within the mist, a territory dominated by monsters where sunlight never reaches. With only one eye and missing an arm, daily suffering was all Lily could expect. In a world where the strong rule over the weak, she faces aggression and abuse every day, learning in the harshest, most painful way that kindness doesn’t exist.However, everything changes when she encounters a sentient metamorph, a nameless monster, wounded and abandoned by its pack. Together, they discover that perhaps they don't have to face this cruel world alone. Now, with a companion willing to risk everything to protect this bond, Lily, the girl who had lost everything, finds a new reason to live and fight.

Within the Immortal Realm, there were nine thousand major realms, with three thousand at the top, three thousand in the middle, and three thousand at the bottom, along with countless minor realms.