Question 1

Where is Ruins of Takasaki-jo Castle?

Accepted Answer

Ruins of Takasaki-jo Castle is in Takasaki, Gunma, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of Narenare -Cheer for You!- does Ruins of Takasaki-jo Castle appear in?

Accepted Answer

Ruins of Takasaki-jo Castle is a real place that appears in Narenare -Cheer for You!-.

Question 3

Can I visit Ruins of Takasaki-jo Castle?

Accepted Answer

Yes. Ruins of Takasaki-jo Castle is a real place you can visit. Check what it looks like on Street View before you go.

Question 4

Where was Narenare -Cheer for You!- filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and Ruins of Takasaki-jo Castle is one of those real places.