The Disastrous Life of Saiki K. - Vol. 7 Ch. 72 - Make some Noise! PK Academy's School FePSIval! (2nd Half)

[MangaDex]

 

[sheepdoge]

kusuo and his dad's face on page 12 XD

 

[Hahasofunny]

looking at page 13, those two are definitely related.