Even if we were to believe her that this was her only motivation for rummaging through Makino's stuff, it is still a violation of privacy to enter someone's bedroom without permission (or some kind of emergency), as far as I am concerned. :-)
For real ? I send you the page where you can see that she was doing it genuinly for once and you stil deny it and force the narrative of "violating privacy" when she was cleaning the room. Not her mom fault she let the love hotel card in plain view. I guess it's a 1-1 in terms od denying one 's arguments.
Never thought I'd see the day when Makino's parents would have someone staunchly defending them. Wild.
Maybe if Makino wasn't so annoying to me, might have not defend them but i can't bring myself anymore to like this character who don't seem redeemable in the slightest. She is just a horny dog thinking about how much she can spend on lewd course and after 31 chapters it's just annoying.