"My image is of someone who is down to earth, something like that." 'Burahara'Interest in blood type is widespread in Japan, particularly which combinations are best for romance.
Women's magazines run scores of articles on the subject, which has also inspired best-selling self-help books.
There is a widespread belief that blood type determines personality, with implications for life, work and love.
It is Saturday night and a speed dating session is under way in a small building in the backstreets of Tokyo.
People born with this blood type are perfectionists by nature and enjoy maintaining a system of order through rules and regulations.
Due to the fact that they like following customs, they are often not very spontaneous when in a relationship.
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The room is brightly painted in red and white, the staff upbeat and enthusiastic, but the conversations are rather stilted.
Stripped of its racial overtones, the idea emerged again in the 1970s.
Debunked Now, blood typecasting is as common as horoscopes in the West, with the whiff of science - although dubious - giving it added credibility.
So if you can hide behind blood types you can then tell someone indirectly what you think about them." Scientists regularly debunk the blood group theory but it retains its hold - some believe because, in a largely homogenous society, it provides an easy framework to divide people up into easily recognisable groups.
The last Prime Minister, Taro Aso, even put the fact that he was a type A in his official profile on the internet.
The received wisdom is that As are dependable and self sacrificing, but reserved and prone to worry.