Delivering a Letter, I Picked up an Elf Wife

After traveling through time, Lin Yang had nothing but the magic given to him by the system. With his eyes wide open and poor, and unaware of the situation in the city, he chose to accept the letter commission of three copper coins from a strange villain. Bad news, everything is as he imagined, the recipient is ready to kill and silence him. The good news is, he has the strength to take it all for himself. Today, he doesn't eat beef.