It was for "aoi inazma".
In the library, takuya & goro studied and
tsuyoshi & shingo read comics with laughing loudly.
So masahiro and goro gave a caution to them,
but they browbeat on the contrary.
And then...maybe you can guess...
The title of the comic was "aoi inazma".
Give your attention to masahiro & goro's apperance.
nakai --- librarian
goro --- funny face
fight --- look at takuya!! he still studies..
N.G --- tsuyoshi couldn't bear smile..
goro --- still smiles though being beaten