The title of this article is conjectural. Although it is based on canonical information, the actual name is conjecture and may be supplanted at any time by additional information.
Hanazawa (花沢,Hanazawa) was the president of Hanazawa Company. He was the father of Rui Hanazawa, who was his only child and would therefore inherit his company. Hanazawa was strict with Rui when he was younger. He owned a large mansion in Tokyo, though he appeared to not spend much time there.
Hanazawa was the owner of Hanazawa Company. His only son, Rui, was in line to inherit the company. He was extremely strict with his son when he was a child, causing Rui to become depressed. Additionally, Hanazawa was an influential businessman, possibly on par with the head of Domyoji Group as they both seemed to frighten Eitoku Academy'sprincipal.
Behind the scenes
Like the fathers of the other F4 members, Hanazawa has been mentioned on a few occasions but has never appeared.
In the anime, he is also mentioned as being strict with his son. Rui is said to have become "withdrawn" because of his father.
Hanazawa is portrayed by an unidentified actor in a photograph in Boys Over Flowers (2009). In the drama, he and his wife were killed in a car accident when Yoon Ji-hoo (Rui) was five.