Kazusa 2000

Kazusa 2000 is one of the provinces in JAPAN. It is under the control of the Houjou House.

It is adjacent to Edo, Oshu, and Saitama.

Trivia

 * For real world reference, see Kazusa Province or 上総国.
 * The "2000" part may be a reference to a song "さいたま2000 (Saitama 2000)" in the video game Taiko no Tatsujin (Drum Master), since Saitama is right next to Kazusa; and/or it might be a reference to a song named "あずさ２号 (Azusa #2)", whose theme is about the 8 o'clock (20:00) Azusa #2 train.