Takeshi Jin conducted research and have no idea how people with different blood type. There is a different personality. The kind of people who say cool and serious people.
Takeshi Jin conduct research And are thought People with different blood type. Has a different personality The type of people who say that people who are serious about calm and kind.
Takeji conducting research, and have the idea that people with different blood types have different personality types of the people say to be calm and serious people with type