The truth these girls know is the fact that I am still under the control and surveillance of Scarlet, just that she has gone for something back home, which gives me the gap to interact with them by using my powers and confusing the sight of Scarlet such that she does not know what happens at that time, a cover that creates a loop which shows past scenes just to keep her confused.
At least that's what I have told Rika and Mika, and I have already informed them that doing this isn't easy for me, and I only get some calculated breaks in between, which I use to spend time with the two of them. Now, the main reason we haven't had sex is also that I might lose control during that time and reveal the truth, plus a lot of time is also lost too.