"technobreak"?? What kind of bizarre slang is that, sounds like some fighting game lingo so why would it refer to that. Also the secret ghost wasn't nearly secret enough in this chapter, so there wasn't the fun spooky game of trying to find her. :(
PS the whole "bisexual slut" thing feels honestly like such a minor non issue to me these days. It's also a backwards understanding of the trope: it's not stereotyping bis as promiscuous, but rather stereotyping promiscuous people as bi. Like "that girl has had so many partners that I bet she even cross gender lines". It's not actually a reversible trope in this context, there's plenty of non-slut bis in yuri manga. Just very very few non-bi sluts. It's the irl sluts who should thus feel offended here, not the irl bisexuals :P