I went from Mitsudomoe to Rororro finally Boku no Kokoro so I'm used to this shit. But imagine what those poor fuckers expecting a cute romance, who decide to check out their other work.
This chapter has so many parallels with Mitsudomoe, it's actually pretty cute.
[ul]Ogachin and Aoi both have older siblings that are police officers.
Ichirouta and Police-san are overprotective of their little sister.
Police-san is more on the violent side (compare her traffic safety drill with Ichirouta's at https://mangadex.org/chapter/911100).
Ogachin and Aoi wear a striped shirt under a jumper, with Ogachin's ending in a blouse and Aoi's ending in leg holes.[/ul]
Though we have yet to see if Police-san has an unhealthy obsession with her little sister.
I think her obsession is with cats.
@Jackist That's a good point, going from Mitsudomoe's anime to Rororro to finally BokuYaba, I only saw things getting toned down for BokuYaba, but people trying to do the reverse would be so confused.