I think devs aren't from japan, but it has plenty of moe in it and it looks really cool.
From their web: Let's imagine that you have a game in which you care for a character. But could you imagine one day getting into that game yourself? MiSide is an adventure game with horror elements, telling the story of a simple guy who, for mystical reasons, finds himself in a mobile simulation. Appearing in the house he has just observed on his smartphone screen, the hero becomes confused. The stunned guy follows the instructions of a certain device he discovered in the bedroom. A few moments later, he is greeted by a pretty girl, whose image is also familiar to the young man from this mobile game.
You can DOWNLOAD the demo in their itchio
