Question 1

Where is Nishishinjuku Prime Square?

Accepted Answer

Nishishinjuku Prime Square is in Shinjuku, Tokyo, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of The Devil is a Part-Timer! does Nishishinjuku Prime Square appear in?

Accepted Answer

Nishishinjuku Prime Square appears in EP1 of The Devil is a Part-Timer!.

Question 3

Can I visit Nishishinjuku Prime Square?

Accepted Answer

Yes. Nishishinjuku Prime Square is a real place you can visit. Check what it looks like on Street View before you go.

Question 4

Where was The Devil is a Part-Timer! filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and Nishishinjuku Prime Square is one of those real places (EP1).