Type A:
Organized
Creative
Overcautious
Sensible
Picky
Punctual
Example: Sakura

Type B:
Curious
Enthusiastic
Selfish
Sensitive
Unpredictable
Unreliable
Example: Meilin

Type AB:
Trustworthy
Efficient
Strict
Considerate
Indecisive
Sensitive
Example: Yukito

Type O:
Goal Oriented
Loudmouth
Competitive
Vain
Optimistic
Flexible
Example: Syaoran

Compatibility:
A is compatible with A and AB.
B is compatible with B and AB.
AB is compatible with all blood types.
O is compatible with O and AB.