Question 1

Where is Mitsui Outlet Park Iruma?

Accepted Answer

Mitsui Outlet Park Iruma is in Iruma, Saitama Prefecture, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of Saekano: How to Raise a Boring Girlfriend does Mitsui Outlet Park Iruma appear in?

Accepted Answer

Mitsui Outlet Park Iruma appears in EP5 of Saekano: How to Raise a Boring Girlfriend.

Question 3

Can I visit Mitsui Outlet Park Iruma?

Accepted Answer

Yes. Mitsui Outlet Park Iruma is a real place you can visit. Check what it looks like on Street View before you go.

Question 4

Where was Saekano: How to Raise a Boring Girlfriend filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and Mitsui Outlet Park Iruma is one of those real places (EP5).