With this chapter I really have to question the quality of these translations. How do you get "A picture is worth 1000 words" from "seeing is believing" anyway? What was the original Japanese?
FomilyMart renamed itself -- I think this is one of the few cases where a reference affects something introduced earlier in the manga.
What is Takagi-shachou doing in hospital?
That art gallery they're fighting outside seems to be open quite late.
This chapter came out in the September 2017 issue of Monthly Shonen Champion, which would have been published early August 2017. One might keep this in mind when looking at the references in this and the next few chapters...
The poster's actually the cover of the album Beat Emotion released by BOØWY in 1986. That it's similar to the video of BE MY BABY may or may not be a coincidence.
Kanae's most famous moment (possibly the manga's most famous moment before the deluge Idolmaster references) is coming up in a few chapters. You might not be ready for it.
"Cunnyposting"? The Louise Copypasta is no mere "cunnyposting", it is a true legend of copypastas still making the rounds after 17 years, dating from that halcyon era when Rie Kugimiya was the queen of tsunderes, etc. etc...
Anyway, here's Tsukino Mito reading it with a voice changer back in 2018: