Question 1

Where is Sushi Takashima?

Accepted Answer

Sushi Takashima is in Kanazawa, Ishikawa, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of Insomniacs After School does Sushi Takashima appear in?

Accepted Answer

Sushi Takashima is a real place that appears in Insomniacs After School.

Question 3

Can I visit Sushi Takashima?

Accepted Answer

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

Question 4

Where was Insomniacs After School filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and Sushi Takashima is one of those real places.