Question 1

Where is Rainbow Bridge?

Accepted Answer

Rainbow Bridge is in Hinohara, Tokyo, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of Negative Positive Angler does Rainbow Bridge appear in?

Accepted Answer

Rainbow Bridge appears in EP3 of Negative Positive Angler.

Question 3

Can I visit Rainbow Bridge?

Accepted Answer

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

Question 4

Where was Negative Positive Angler filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and Rainbow Bridge is one of those real places (EP3).