Question 1

Where is Niiyamadai 2 Park?

Accepted Answer

Niiyamadai 2 Park is in Inzai, Chiba, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of Heavenly Delusion does Niiyamadai 2 Park appear in?

Accepted Answer

Niiyamadai 2 Park appears in EP10 of Heavenly Delusion.

Question 3

Can I visit Niiyamadai 2 Park?

Accepted Answer

Yes. Niiyamadai 2 Park is a real place you can visit. Check what it looks like on Street View before you go.

Question 4

Where was Heavenly Delusion filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and Niiyamadai 2 Park is one of those real places (EP10).