Question 1

Where is Koumura Barbershop?

Accepted Answer

Koumura Barbershop is in Ueda, Nagano, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of Mirai does Koumura Barbershop appear in?

Accepted Answer

Koumura Barbershop is a real place that appears in Mirai.

Question 3

Can I visit Koumura Barbershop?

Accepted Answer

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

Question 4

Where was Mirai filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and Koumura Barbershop is one of those real places.