Is the resistance (win) path also harem or is it just the corrupted path?
Yes, it's both. But for Resistance, I'm planning on adding individual endings for each girl, since it is a multiple-ending game, after all. Still, that's the end of the story's stuff, and we're a long way from that.
Oh, so you could in theory "lose" some girls and still "win" and protect some others? That's amazing if so!