No, this is a short game containing a "what if" scenario of the character from the main game he is working on. But that game is a long way from being finished, so he wanted to get something out sooner. Its more an advertisement to the main game showcasing the art and ability to make a game. The main game has the same character but this game aged her down several years.
RJ01013038 on DL site is a simular game, but its not NTR just corruption.