The current version of the game is the Valentine's Update. This update added multiple quality-of-life improvements for reaching 100%. Once you've slept with Venus, you can buy gifts for Hunie, and the chance to learn new details of completed girls is increased, and you can choose date locations. Unfortunately, sleeping with Kyu is now required to unlock Venus, in addition to the 8 main girls. And oddly, a short delay was added to Kyu's final textboxes during the intro.

Therefore, the January 23, 2015 version is faster for all categories except 100%. In addition, it runs DRM-free, due to not having Steam achievements.

This download includes all game files, except the EXE (which is unchanged between versions, and should make this legal!). Extract them on top of a game copy, replacing all original files. (If it doesn't ask you if you want to replace anything, then you're not extracting it in the right place)

https://drive.google.com/file/d/1hMvNV0VFz1RZTeJ40iNQEhclUiK6ipJM/view