I want to write about the lore regarding the guy in the third panel:
You guys are right that the guy eating food IS the dad from Crayon Shin-Chan. There is an official spin-off that is a gourmet manga starring Shin-Chan’s dad.
The silent man in the third panel is a reference to a certain artist on Pixiv who became a meme because he kept posting gay fanart of himself together with Shin-Chan’s dad, titled “Hiroshi Nohara and me”. Sadly it seems like his account is deleted now.
