Doula Continent: Soul Master Duel - A cheating lifehack for beginners and beyond! (Battle Continent)
Many long-time players already know about it, but I think many haven't, as they simply forgot about it at the time. It's a very useful feature, especially for F2P.
Download here (Taiwan server):
https://apps.qoo-app.com/en/app/17908
And here, but better yet, at the link above (Chinese server):
https://www.taptap.com/app/211270
Discord channel:
/ discord