Blood Type

We Japanese tend to judge our personalities depending on our blood types.
I assume this culture is not so common in other countries.
There aren’t any scientific evidences to prove that each blood type has certain characteristics.
But there are a lot of books to introduce the differences of personalities which seem to derive from their blood type.
I am going to have dinner with a woman next week.
Her blood type is B and mine is A.
I borrowed a book from a library titled “instruction manual of blood type B women.”
These information cannot always be helpful for the date, but I will prepare for the day by reading the book.