Oh god… I just checked the web novel, and we're currently in the middle of volume 3. By the way, the story ends at volume 14 (plus another volume of bonus stories). I'll just read the WN alongside the manga then, since I can't wait decades for the manga to catch up with the story—assuming...
While I like the idea that she subconsciously accepted him, I think that's just his bullshit OP ability to tear through subspaces… by overcharging it with mana until it bursts open.
I’ve read many wholesome loli incest sister hentai doujins. Straight-up rあpe, ryona, or even gore are much better than prolonged emotional distress like this one. Yeah, I guess my taste is kind of weird.