Characters of Blood Type A
Best traits: Earnest, creative, sensible, reserved, patient, responsible
Worst traits: Fastidious, overearnest, stubborn, tense
Characters of Blood Type B
Best traits: Wild, active, doer, creative, passionate, strong
Worst traits: Selfish, irresponsible, unforgiving, unpredictable
Characters of Blood Type AB
Best traits: Cool, controlled, rational, sociable, adaptable
Worst traits: Critical, indecisive, forgetful, irresponsible, "split personality"
Characters of Blood Type O
Best traits: Agreeable, sociable, optimistic
Worst traits: Vain, rude, jealous, arrogant