In the game files, next to the Madoka's CGs, it looks like there's art for Haruki taking off her ring and an image of some pills in a box that reads "increases chance of inter-species pregnancy". Though I can't seem to find any of these events on her date. Anyone have any luck encountering this?
So here's how you do it. On Madoka's date, if you hit 100%, you get the regular love hotel scene. But her date has a unique mechanic: get the mood high (80% worked for me), but not 100%, and she'll tempt you into the hotel anyway. Accept, and she'll let you take off her ring before sex. After the H-scene, she has you feed her the pill. Extremely hot, just wished the pill came before the scene, not after.
