A few weeks back we told you about an unusual chat app from Japan called Henshin Kudasai. Roughly translated as ‘Please text me back’, the interesting thing about this application is that it doesn’t actually require any second person for you to engage in a flirty chat. It’s a romantic texting simulation game. When we last checked in, the app had 500,000 downloads just after its launch. And now, according to the folks at over at Growing App Henshin Kudasai has surpassed a million downloads since then. Last week, there were six new virtual characters added for users to chat with, bringing the total to 32. That seems to have given the game a boost because in the past week the game has been gaining momentum, becoming the top simulation game in the iOS app store, and breaking into the top 20 free apps overall (see chart below). For Android, it has also fared pretty well, peaking at the third position among all free apps on Google Play in Japan back on August 26th. The game was created by Japanese internet company Basic, and if you’d like to give it a try, it’s available as a free download on iOS…