Question 1

Where is Hirakata Park?

Accepted Answer

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

Question 2

Which scene of Deaimon does Hirakata Park appear in?

Accepted Answer

Hirakata Park appears in EP12 of Deaimon.

Question 3

Can I visit Hirakata Park?

Accepted Answer

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

Question 4

Where was Deaimon filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and Hirakata Park is one of those real places (EP12).