Ruby Sudoku

Ruby Sudoku, commonly referred to as, (Crimson) or (Crimson Scarlet), is a major protagonist, and central character in the manga and anime series, Shikoku!. She is an ally of Shikoku Kirame and is a member of the Blood Family. She is granted with extraordinary abilities and has an self-unwanted crush on Hakuoh Kaiser.

Powers and Abilities
As the main member of the Blood Family, Ruby is shown to be an extremely skilled and intelligent martial artist. Her unique abilities allows her access to various techniques, secret techniques that even head Blood Family members could not, or were forbidden from learning.