Yes.
Thank you for the creator's plot explanation. This is my last plot-related question. During today's gameplay, I noticed another issue. When the protagonist has sex with Hitomi Ito in the truck, he mentions that there is residual semen in her anus and speculates that she must have been with her boyfriend shortly before, which is why it's still there. What's going on with this dialogue? This should be Momoko Yamada pretending to be Hitomi Ito, right?