A common table of traits for blood groups

There is a popular belief in Japan that a person's blood type is predictive of their personality, temperament, and compatibility with others, similar to western astrology.

Stemming back to the findings of Austrian scientist Karl Landsteiner in 1900 and growing from its failed use as a means to predict the temperaments and reactions of certain races, the theory’s modern popularity originated with publications by Masahiko Nomi in the 1970s. In the modern world, although there is no proven correlation between blood type and personality, it remains popular with many matchmaking services, much in the same way astrology horoscopes are used in the west.

It is common among anime and manga authors to give their characters corresponding blood types to further flesh out their personalities.

Negima! Blood Types

Character Bloodtype Character Bloodtype
Sayo Aisaka Yuna Akashi A
Kazumi Asakura O Yue Ayase AB
Ako Izumi A Akira Okochi AB
Misa Kakizaki O Asuna Kagurazaka B
Misora Kasuga A Chachamaru Karakuri
Madoka Kugimiya AB Ku Fei A
Konoka Konoe AB Haruna Saotome B
Setsuna Sakurazaki A Makie Sasaki O
Sakurako Shiina B Mana Tatsumiya A
Chao Lingshen O Kaede Nagase O
Chizuru Naba A Fuka Narutaki A
Fumika Narutaki A Satomi Hakase B
Chisame Hasegawa B Evangeline A.K. McDowell
Nodoka Miyazaki O Natsumi Murakami A
Ayaka Yukihiro O Satsuki Yotsuba A
Zazie Rainyday B Negi Springfield
Shizuna Minamoto AB


  • Asking one's blood type is common in Japan, and people are often surprised when a non-Japanese does not know their own blood type.
  • Many idols and other Japanese celebrities include a blood type statistic in their profiles, in addition to other facts such as their hobbies and star sign.

Beings Cerberus Cloth EaterDemi-humanDemonDragonErmineHanyoOnmyuo GodVampireYurei
Groups Ala AlbaAla RubraClass 2-AClass 3-ACosmo EntelecheiaKansai Magic AssociationKanto Magic AssociationMighty Morphin Baka RangersShinmei-ryu
Events Hinoshima Summer FestivalMahora Academy School FestivalMahora Martial Arts TournamentMars Attack vs Mahora Mage Order
Other Blood TypeBuddhismBWH MeasurementsCheerleadingDodgeballGolden WeekJapanese School SystemKissingMagic (card game)Magister MagiMarriageMinistra MagiOnsenPactio ContractPaipanPillow FightSash PullShintoTea CeremonyTwister

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.