Ganithrum

Ganithrum is the city that the Oh Pi series mainly takes place in.

History
Like other major cities, Ganithrum has come under many kaiju attacks over the years. It became a hot spot for kaiju attacks after a crack in space was opened near the planet, drawing Oh Pi to it. The main kaiju defense force situated in Ganithrum is the Ganithrum Kaiju Defense Force, home to Oh Pi, Nurth, Frank, Barry, Susan, Katherine and David. With the help of Oh Pi and Nurth, they defend the city from kaiju and other unworldly threats.

Trivia

 * Ganithrum is the in-universe equivalent of modern day London, albeit with some differences.