Question 1

Where is Mandai Nabari?

Accepted Answer

Mandai Nabari is in Nabari, Mie, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of The Summer Hikaru Died does Mandai Nabari appear in?

Accepted Answer

Mandai Nabari appears in EP1 of The Summer Hikaru Died.

Question 3

Can I visit Mandai Nabari?

Accepted Answer

Yes. Mandai Nabari is a real place you can visit. Check what it looks like on Street View before you go.

Question 4

Where was The Summer Hikaru Died filmed?

Accepted Answer

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