It's Terrible! the Nurse Sister Asked Me to Pick Eight

[Multiple female protagonists➕Decisive killing➕Invincible cool writing➕No knife➕No system] My name is Zhang Yang. When you read this sentence, I have already been cheated. I originally wanted to be a green-haired turtle for the rest of my life, but due to saponification, I unexpectedly received the inheritance of immortal magic and embarked on the path of cultivation. Zhang Yang: On the journey of cultivation, you have to fight against others and against heaven. I am invincible, you can do whatever you want!