Question 1

Where is Oyaguchi Hikawa Shrine?

Accepted Answer

Oyaguchi Hikawa Shrine is in Saitama, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of A Sign of Affection does Oyaguchi Hikawa Shrine appear in?

Accepted Answer

Oyaguchi Hikawa Shrine appears in EP3 of A Sign of Affection.

Question 3

Can I visit Oyaguchi Hikawa Shrine?

Accepted Answer

Yes. Oyaguchi Hikawa Shrine is a real place you can visit. Check what it looks like on Street View before you go.

Question 4

Where was A Sign of Affection filmed?

Accepted Answer

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