...... Its not sirius?
I doubt it. Everyone besides the fortune teller avoids says his name and just Mr. Phantomhive. Sirius is just a star constellation thing.
I think sirius, the name or label was given to him to get him in trouble
it's the name of the blood type isn't it
Omg. Then just makes it more amusing
(ΰΉβ’γ
β’)Ωβ§
we still don't know his real name