Announcement:

https://store.steampowered.com/news/app/2191270/view/577128955243399104

Will be paid after the update.

“In early March, Float Gaming Studio officially took over the project and will undergo a major update. Due to the development plan of the game, in order to continue bringing high-quality game works and a good experience, it has been decided to change the pricing from free to 6 RMB (0.99 USD) POSSIBLY.”