The surnames of many of the characters are derived from Japanese numbers: Ichinose - "One/first rapids". Mitaka - "Three hawks", Mitaka is also the name of a wealthy area in Tokyo. Yotsuya = "Four valleys", shares a name with the Yotsuya district, name famous in a Japanese ghost story. Godai = "Five generations". Roppongi = "Six trees", Roppongi is also a famous nightclub district on Tokyo. Nanao = "Seven tails". Yagami = "Eight gods". Kujo = "Nine streets", Kujo may also a play on "Cujo", the Stephen King book.
more