Question 1

Where is Oshoji Park?

Accepted Answer

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

Question 2

Which scene of Tsurune: Kazemai Koukou Kyuudoubu does Oshoji Park appear in?

Accepted Answer

Oshoji Park appears in EP1 of Tsurune: Kazemai Koukou Kyuudoubu.

Question 3

Can I visit Oshoji Park?

Accepted Answer

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

Question 4

Where was Tsurune: Kazemai Koukou Kyuudoubu filmed?

Accepted Answer

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