It's a post-apocalyptic business. The heroine has a lot of metaphysics. She's not a cultivator, but she has brains. She's not a holy mother. She's a bit crazy and has a lot of brains. She just wants to make money. In the mid-term, she will authorize others to use the system's capabilities. She decides to earn crystal cores while lying down.
A true post-apocalyptic novel, not the Holy Mother, where you kill when you need to, leave when you need to, and go around rescuing people when you have nothing to do. The protagonist is always alone, and there is no heroine (I haven't finished it yet, but that's probably the case).
In this apocalyptic world where the order has collapsed, I will be reborn, with the blood lessons of my previous life. In this life, I will walk alone in the world, teammates, what a ridiculous thing, I only believe in myself; with the experience of my previous life, licking the blood on the tip of the knife, no matter what the road ahead, I will move forward indomitably.
The protagonist's colleague was sexually harassed in the workplace. The protagonist kicked his boss and was fired. As a result, it was the end of the world the next day. The boss becomes the boss and is killed directly by the protagonist. The protagonist is a decent person who retains his conscience even in the last days.