The characters (well some of them) are starting to become aware of themselves and itself
Kousei:
Nani (siren goes brrt in his mind) (i-it's fine, I absolutely did nothing wrong!
yet)
Yuu-chan:
having a waku waku doki doki moment
Kousei's mom:
oh shit calm down and listen, it's alright, okay? hear me out on what I have to say Kousei, carefully, okay?
also Kousei's mom: Kiyoko-san, keep your eyes to the front and focus please
Kiyoko-san the aunt:
how precious so glad for you, Yuu-chan
Us, the readers:
Belka We absolutely did nothing wrong. swear.