The worst thing that Cheng Ran encountered in his life was that he encountered an unknown book-traveling system at the moment he died. What was even worse was that as a lost salty fish, he had to be the roommate, assister and tool of the protagonist who had many things in the original book.
Cheng Rui:......
Cheng Rui: I can't do anything. Close your eyes and lie down (?3[_Goodnight_]
Note: Update as you like, it may be a trap, so proceed with caution! And narcissus, narcissus, narcissus!
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It's not mutual attack. The system automatically determines that there is mutual attack. There are both attacking and receiving perspectives, but more of a receiving perspective.
Purpose: Successor of socialism