Point-and-click navigation, dialogue choices that affect "corruption" or "affection" levels, and animated scenes.
Ensure the file size of the combined parts matches what the developer listed to avoid truncated files. SexNote-0.19.5a-pc.part1.rar
Always run a virus scan on extracted .exe files, as multi-part archives from unofficial mirrors can sometimes be used to bundle unwanted software. SexNote-0.19.5a-pc.part1.rar