The no underwear thing isn't really a surprise seeing as its saki, altough butshots are really becoming more common. Altough for some reason it seems to be mostly the loli buts that gets shown off(Yuki, Hatsumi, Hajime, Koromo).
But these lateast developments really makes it feel likeit was worth it too start liking Yuki after that stuff round chapter 70. With that premonition that has been pretty much confirmed at this point and hinted at then she's surprisingly turning into quite a monster.
Also any chance of the earlier chapters getting uploaded here?