Wen Luo is the owner of Yaoyao Post Office. True to its name, the only customers the Yaoyao Post Office receives are a group of little monsters. Wen Luo likes to light green incense and sit down to listen to the stories they want to tell, starting from the ancient desert yellow sand and ending with the floating and long songs when the incense is gone. Wen Luo would write down the stories told by these little monsters on the special letter paper of the Monster Post Office, print it with a flower stamp, and let the hiking horse take the letter paper to where they should go. These letterheads are called flower letterheads. Author Weibo: Hua Zhuzhuhui