Ozawa (小沢,Ozawa) was a classmate of Sara Hinata whom he had a crush on. She did not appear to feel the same for him. Later, Sojiro Nishikado spotted Sara with a boy, who could have been Ozawa. He also may have been the boy Sara dated briefly during her second year.
In Meteor Rain (2001), Ozawa is renamed Xiao Touh. He is mentioned by Xiao Geng's (Sara) friends. They encourage her to date him, though she insists that he does not like her. Later, Xiao Geng is spotted with a unnamed guy, possibly Xiao Touh.
A possible version of Ozawa is portrayed by Kei Tanaka in episode seven of Hana Yori Dango Returns (2007). He was not referred to by name. In the drama, he is the son of Sara's father's friend and has an exceptional talent with pottery. He asked Sara to be his girlfriend with "marriage in mind," suggesting that they are engaged.