Character from cradle-uncrowned by
Yerin's Blood Shadow — now a near-autonomous combat partner, fighting alongside her in the tournament with sword techniques of its own.
Ruby has developed significantly. In tournament combat, the Blood Shadow fights as a second combatant — mimicking and adapting Yerin's sword techniques with its own blood-madra variations. It's still not a person, but it's close enough to unsettle everyone who sees it, including Yerin.
Crimson tendrils that extend and fight independently during combat. The red lines on Yerin's skin pulse brighter when Ruby is active. In tournament matches, observers can see it moving with its own intent.
Also known as: the Blood Shadow, Ruby