In most works, depravity is something done to the listener. Here, the listener is the instigator. The dialogue revolves around the phrase "Kimi no sei da" ("It’s your fault"). The pleasure doesn't come from the act itself, but from the guilt after the act.
: These files are primarily in Japanese. If you aren’t fluent, check if the folder contains a script or translation file (often in .txt or .html format).
As we don't have more information about the file, it's impossible to say for certain what's inside. However, based on the filename and extension, here are a few possibilities: