Not sure if it still applies but the bruises on Yukari are just makeup.
I hope so; otherwise this is almost as bad as that Takayosuba GuP story where everyone except Miho dies...
On the surface; this looks like;
Miho: 'I'll like you more, Yukari-chan, if you looked like Boko-San.'
Yukari: 'Nishizumi-dono, why are you making fists?'
Smack, pow, punch...
Y-Yes, Nishizumi-dono...You're so cute, Akiyama-san...
You be good and stay just like that...Akiyama-san... Take off your clothes...Wait, what is this!?
Nishizumi-donooooo!?