There are several systems of Japanese romanization. While the one from your book is not wrong, it's less common than the other two ways I see more often. Usually it stays 'ou', or else an accented ō is used.
I hate romaji :P
Ah, ok. I know what you mean.
hide... always in my heart. I love you.... my pink spider....
My one wish is 2 meet Kyo. seriously.
