Question 1

Where is Koyamacho (Bus)?

Accepted Answer

Koyamacho (Bus) is in Nerima, Tokyo, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of Chainsaw Man does Koyamacho (Bus) appear in?

Accepted Answer

Koyamacho (Bus) appears in EP12 of Chainsaw Man.

Question 3

Can I visit Koyamacho (Bus)?

Accepted Answer

Yes. Koyamacho (Bus) is a real place you can visit. Check what it looks like on Street View before you go.

Question 4

Where was Chainsaw Man filmed?

Accepted Answer

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