Seigi (meaning "justice") is the main protagonist of the manga and anime Taboo-Tattoo. He got his tattoo from an old man whom he saved from thugs. He has one of the most powerful tattoos: Void Maker.
Seigi's personality is a complex one, at times he can be kind and sometimes he can be an angry person. Regardless, he fights for what he believes is right.
- Void Maker: Void Maker is one of greatest tattoos that is known until now. Void Maker can create :Black Holes ,Voids and can create a sphere that destroys everything around it. However, Seigi can't control his power because Void Maker has a personality on its own, a dark personality that likes blood more than anything. Void Maker is the only tattoo that holds the dark truth of the tattoos, but no one knows how a tattoo can reveal the truth, or if it is his personality that knows the truth. At this point, it is unknown.
- Martial Arts: Seigi is a very good martial artist. His grandfather trained him for the last couple of years, and until now, no one has ever beaten him except for his grandfather and the lieutenant.
- Father: He respects his father deeply, and he believes that his father died for a right cause. He also remembers his words about reaching something if you raise your hand high enough. *Grandfather :He trusts his grandfather a lot, and treats him more like a master than a grandfather.