Question 1

Where is GiGO Tachikawa?

Accepted Answer

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

Question 2

Which scene of I Made Friends with the Second Prettiest Girl in My Class does GiGO Tachikawa appear in?

Accepted Answer

GiGO Tachikawa appears in EP2 of I Made Friends with the Second Prettiest Girl in My Class.

Question 3

Can I visit GiGO Tachikawa?

Accepted Answer

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

Question 4

Where was I Made Friends with the Second Prettiest Girl in My Class filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and GiGO Tachikawa is one of those real places (EP2).