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Sei (セイ) is one of the supporting characters of Black Blood Brothers series.

Appearance

Personality

History

Plot

Relationships

Jiro Mochizuki

Cain Warlock

Dark Princess of the North

Shougo Jinnai

Powers and Abilities

Gallery

Main article: Sei/Gallery

Trivia

  • Sei bears the title of "Ryū-Ō". He also bears the titles "Prosecutor of the East" and "Young Emissary".
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