What no instructions on how to use them? Oh and no answering questions either. Can I go back to just spirit stones?
Fast pass?
When you read a story with locked chapters you can use fast passes to unlock chapter (so you don't have to pay for the story if you don't want- just have to wait a bit longer).
I don't think it's possible to switch onto old webnovel system but idk
Crsty1961 look at the pinned messages made by yaoyeui. Everything you need to know about Coins, fastpasses, premium chapter rates, etc. Basically everything you can think of and will think of has been addressed there. Don't say that it hasn't been addressed. It is literally hanging at the top.