To fully experience the game, you need to load additional expansion content. After the current version of Steam is updated, accounts in some areas can no longer load additional expansion content through codes. After inputting, it will display "This item is currently not available in your region".
The solution is to transfer to the port area or download the patch and unzip it in the game directory.
Patch link:
Hot And Lovely 5：https://1drv.ms/u/s!Anpo3wbnKaIrmj1oYN4CW7epWpJv?e=XUfQ01
Fairy Biography：https://1drv.ms/u/s!Anpo3wbnKaIrmjwHdygd43k8Q7ho?e=AwqiM4
We will continue to update the patch links for all games, please be patient~
Source: Steam Community (opens in a new tab)