Rika Kayama (香山 リカ Kayama Rika, born July 1, 1960 in Sapporo, Japan) is a Japanese psychiatrist, who wrote Nana Renai Shourigaku. She graduated from Tokyo Medical University in 1986.



Rika Kayama has written and co-authored several books since 1991. Her latest being released on July 31, 2014.

In 2005, she wrote Nana Renai Shourigaku for the Nana franchise. The book analyzes the love lives of Nana Osaki and Nana Komatsu. She gives advice to young girls throughout the book.

Personal life

Kayama is married to sports writer, Saito Fumihiko (斎藤 文彦).

See also