Hello I'm sorry for sending such a long question

 Questions:

1.  Is there any difference between the basic course and the remastered version？

2.Does the remastered version include DLC for 2022

3.Where to buy the game is more simple and convenient. As a foreigner, There are two ways to purchase：itch and Patreon，

If this is unreasonable, I apologize to you. I am happy if you reply to me

Hi, 

1. I'm don't know what's "basic course" is, but I guess it's the old version of the game that used to be sold on Gumroad.

💀The old version is heavier, laggy and can't be run on many devices. It's no longer supported, no animation, no sex sound effect, only in English. Of course, new features and updates are also unavailable since they're no longer supported anymore.  
😚The Remastered - we rebuild the game again from scratch, then porting the content from the old game over. It's much lighter (better optimization) and can be run on more devices (better coding, no more lags, freeze and sudden shutdown). New features and content updated monthly~ (Invite residents to your room to have sex, Daily missions, Artworks,...). Animated, can switch between many languages (English, Mandarin, Japanese, Korean, Thai, French, German, Spanish)

We even sent all players who purchased the $69.99 Old game a free copy of the Remastered on Itch-io, as we moved platform, and also moved to continue the game in the Remastered.  So, the Remastered is to replace the Old and be the one and only game version. Buy one and own all updates forever, it's simpler that way. 

2. The Remastered included all Outfit DLCs. For DLC Events and their Event outfits, they're not included and players will have to buy them separately to unlock them. However, players who have bought them before (on Gumroad) can use the same Gumroad License Key to unlock them again, using the same method (Redeem). We make sure that players never have to buy duplicate~ 
All DLC Events will also be animated, available in 8 languages, of course. 

3.  The only place to buy the game is erocondo.itch.io - There's no way to buy it on Patreon.