Blood type Japanese like talking about our blood types. It is believed that our character depend on the blood type. Of course, there is no scientific evidence. Therefore, it’s interesting. We use it as a topic for small talk. Roughly speaking, A is considered as meticulous. B is selfish, O is generous, and AB is unique. So, it’s a little bit rude to ask “Is your blood type B” However, there is a interesting theory that many top athletes’ blood types are B, such as Ichiro, Mao Asada or Yuzuru Hanyu etc. B is also said “conpetitive” That makes sense. By the way, my blood type is B:)