Question 1

Where is Yuwaku Post Office?

Accepted Answer

Yuwaku Post Office is in Kanazawa, Ishikawa Prefecture, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of Hanasaku Iroha does Yuwaku Post Office appear in?

Accepted Answer

Yuwaku Post Office appears in OP of Hanasaku Iroha.

Question 3

Can I visit Yuwaku Post Office?

Accepted Answer

Yes. Yuwaku Post Office is a real place you can visit. Check what it looks like on Street View before you go.

Question 4

Where was Hanasaku Iroha filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and Yuwaku Post Office is one of those real places (OP).