@Rin2k
Probably becomes in calls into question the main character's personality and motives (also the author's writing). This is the same MC that went out of his way multiple times to help strangers, so it feels weird when he sees an "innocent" (I mean as far as we know, because she was literally just inserted into the story with no lines, motivations, or personality) and just lets her get manhandled (pun intended) and does nothing. It also doesn't help for the most part the entire series was pretty comedic, and lighthearted, then all of a sudden it was rape o'clock.