I’m fairly certain that Jack and Shelley are in Manchester (or at least somewhere strongly inspired by Manchester); the building that Jack and Paolo come out of on the previous page is a dead ringer for the Kilburn Building on Oxford Road (i.e. the computer science department), and the background for this page looks quite like the area between the Kilburn Building and the Precinct Centre. The geography isn’t quite right, but it’s certainly close.

(also Paolo’s comment that “this is a music city” completely tracks for 90s Manchester – the background for that frame also looks a bit like the exterior of the Academy, next door to the students’ union in the Biko Building)

One thing is for certain – it’s not Sheffield, because the computer science department is all wrong (it looks nothing like Regent Court).

(yes, my wife studied at both Manchester and Sheffield when we were first going out, and I am a computer science lecturer – why do you ask?)