Question 1

Where is Ishikawaen Tea Stall?

Accepted Answer

Ishikawaen Tea Stall is in Itabashi, Tokyo, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of Blue Box does Ishikawaen Tea Stall appear in?

Accepted Answer

Ishikawaen Tea Stall appears in EP2 of Blue Box.

Question 3

Can I visit Ishikawaen Tea Stall?

Accepted Answer

Yes. Ishikawaen Tea Stall 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 Ishikawaen Tea Stall is one of those real places (EP2).