Hi from a fellow fangirl in Korea! I'm a friend of the one who originally made the dating sim thing. :D Unfortunately, the game is neither out nor in production. It's just an idle conception, she says. Too bad, when she tells us that she has gone as far to envision a hidden XXX route which you can unlock! :( Thought I might just drop you the information, since you seemed to be wondering. :D
… I just realized that tumblr had this “Ask” section, LOL! Fail.
Ohh :/ That’s a pity! The game concept looks incredibly amazing.