Question 1

Where is Ageo Sports Park Gym?

Accepted Answer

Ageo Sports Park Gym is in Ageo, Saitama Prefecture, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of Blue Box does Ageo Sports Park Gym appear in?

Accepted Answer

Ageo Sports Park Gym appears in EP8 of Blue Box.

Question 3

Can I visit Ageo Sports Park Gym?

Accepted Answer

Yes. Ageo Sports Park Gym is a real place you can visit. Check what it looks like on Street View before you go.

Question 4

Where was Blue Box filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and Ageo Sports Park Gym is one of those real places (EP8).