Yes DPC does not want incest in its game. That is correct. But strangely enough, there are hints that Jill and MC are not supposed to have a romantic relationship.
Tybalt's blackmail. Jill is not allowed to see MC anymore?
To get rid of MC, Tybalt didn't have to tell Jill. He could have had him thrown out of college. But no, Jill is just not allowed to be with MC.
Josy's sudden approval of B&R. After all the stragglers, she gets her acceptance. Just before the date with Jill. Coincidence? Hardly.
MC and Josy were being watched (shadowed). Is Josy supposed to distract MC from Jill?
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Apologies to Jill fans. MC hasn't really gotten intimate with Jill yet. Even Maya, a feminist maybe lesbian, has been intimate with MC more than once.
And there is definitely one person MC is shadowing. Who the other woman is shadowing I don't know. But they are all different scenes. And you see these 2 women only with the cell phone near the MC.