If He only based it on Gu, it is fine. After all, Gu is something that's exist not only in Chinese lore, even in Japanese lore it exist. But, that He based it on Gu and have the Main Characters name Fang Yuan. It smells really bad. Example, If someone write novel about Magic School, no one will said Anything. But if He write a novel about Magic School and the MC named Harry Potter, no matter how original the story is, people will say He is Plagiazing, and rightfully so. The author make mistake, huge mistake, when He named his MC Fang Yuan.

Agree. They shouldn't have translated name. Elder Tie, would have been better. At least it isn't the MC name, unlike certain webnovel where it is translated to Cloud Leopard.