Something tells me the song gonna focus WAY more on Karin here. Some embarassing stuff that Karin herself would never agree to. Luckly, Urara is an wonderful asshole that thought her cooperation wasn't exactly necessary.
And that's exactly the moment when the kid has a nightmare, wakes up sacred and needs the support of an adult. Only to realize the only adults in the house are doing..... Adult stuff.
I saw Yamada drifting page and my mind IMMEDIATELY went:
Déjà vu!
I've just been in this place before
Higher on the street
And I know it's my time to go
Calling you and the search is a mystery
Standing on my feet
It's so hard when I try to be me, whoa!
Oh, yeah. That blond archer watched the Komichi/Erika special and got yurified by it like the rest of the school. And she got her sight on the narcoleptic Hawkeye girl.