Astrology, Blood Types, and Yu-Gi-Oh!: Yuugi Mutou

Sun Sign & Personality

Yuugi Mutou – (June 4th) Gemini – Yuugi is flat-out born as a Gemini, the sign of the twins. It’s probably not a coincidence that creator Kazuki Takahashi picked this birthday for him, knowing that Yuugi would be “one of two,” the host/vessel of the Spirit of the Millennium Puzzle. Yuugi was born during the 2nd decan of Gemini, meaning his decan is Libra. People born in the 2nd decan tend to be thinkers or daydreamers. The 2nd decan represents the mental side, the aspect of you that is “the Mind.” The closer one is to the beginning of the 2nd decan (as Yuugi is; he’s born on the 3rd day of the 2nd decan, aka the 12th degree), the more they are attuned to new pursuits and adventures. Yuugi’s always getting into some new experience, isn’t he?

In general, Geminis are known to be always changing, or enigmatic. They’re never what they seem to be! Geminis are also known to be bright, witty, and entertaining -characteristics that Yuugi might not give to himself, but that others might certainly attach to him! His brightness (that is, intelligence, wit) comes from his strategies and his logic, rather than his “book smarts.” At the beginning of the manga, Yuugi is humble, modest, shy, and rarely stands up for himself or anyone else. He is also said not to be very smart in school, but he shows his intelligence in a variety of other ways. Consider that the spirit of Yami no Yuugi had to draw on some of Yuugi’s intelligence to do the things he did before Yuugi or anyone else consciously knew about him! Geminis don’t do too well under stress and are known to have chest problems (physical, like asthma -perhaps why Yuugi’s not too keen on sports?- and emotional, such as heartbreak).


As previously stated, we don’t know Yuugi’s ascendant, but we can guess based on the personality traits they feature. Some of the possibilities I’ve considered:

  • Taurus (hardworking, steadfast, loyal) approx. 2am-4am
  • Cancer (timid, sensitive) approx. 6am-8am
  • Leo (warmhearted, generous, courageous) approx. 8am-10am
  • Libra (diplomatic, not very argumentative) approx. 12pm-2pm
  • Capricorn (prudent, patient) approx. 6pm-8pm
  • Pisces (idealistic, dreamer, optimistic) approx. 10pm-12am

Blood Type

Yuugi’s blood type is AB.

From Bella OnlineType ABs are the split personalities of the blood groups. They can be both outgoing and shy, confident and timid. While responsible, too much responsibility will cause a problem. They are trustworthy and like to help others.

Sounds a lot like Yuugi, doesn’t it?

The whole concept of matching blood type to personality is a Japanese concept in origin (dating back to the 1930s when some people assumed that Asian peoples were lower on the evolutionary chain because they tended to have type B blood. Studies found that many animals also had B-type blood. But of course, it’s possible to have a different type of blood (regardless of race or species!), and so have a different personality!

Now, just like astrology (whether Western or Asian), there’s belief about compatibility between blood types– and we’re not talking the scientific “can you be my donor?” kind!

AB is most compatible with AB, B, A and O (in other words, EVERYBODY).

  • AB characters: Ryou Bakura
  • B characters: Katsuya Jounouchi, Ryuuji Otogi
  • A characters: Hiroto Honda, Seto Kaiba
  • O characters: Anzu Mazaki, Mai Kujaku, Mokuba Kaiba, Sugoroku Mutou

Chinese Zodiac

As far as Chinese astrology is concerned, people born in the Year of the Monkey are the erratic geniuses of the cycle. Clever, skillful, and flexible, they are remarkably inventive and original and can solve the most difficult problems with ease. There are few fields in which Monkey people wouldn’t be successful, but they have a disconcerting habit of being too agreeable. They want to do things now, and if they cannot get started immediately, they become discouraged and sometimes leave their projects. Although good at making decisions, they tend to look down on others. Having common sense, Monkey people have a sincere desire for knowledge and have excellent memories. Monkey people are strong willed, but their anger cools quickly. They are most compatible with the Dragon (1916, 1928, 1940, 1952, 1964, 1976, 1988, 2000) and Rat (1912, 1924, 1936, 1948, 1960, 1972, 1984, 1996).

Of course, one’s zodiac sign may not be the one for their particular year, because the Chinese New Year is not January 1st. The Chinese zodiac follows the lunar calendar, which is not strict; the Lunar New Year tends to fall sometime during February most years. This is why Jounouchi might not fall under the year of the Rooster, even if he was born in 1981; since his birthday is January 25th, he might be a “late bloomer” in the year of the Monkey, like his friends!

One can get even more in-depth with this, just like with Western astrology, by using numerology or one’s birthday/time to determine a particular element associated with your zodiac sign. There are tons of resources on the web for doing this, so check them out!

I hope you enjoyed this! If you’d like to know more about astrology, blood types, the zodiac, and how it all relates to the Yu-Gi-Oh characters, let me know– I’d like to do more of these. 🙂