A gifted Intoner with superhuman battle skills and expert swordsmanship. She is open and uninhibited with men, yet violent and lazy by nature. She constantly quarrels with her overly serious sister, One. The flower blooming in her right eye prolongs her life and has given her a unique body.

— Official Website Description

Zero, formerly named Rose (Usubeni)[1] prior to obtaining the power of song, is the main protagonist of Drakengard 3. She is an Intoner, one who is gifted with the ability to manipulate magic through songs. She is the eldest and the most powerful of the Intoners. Zero is on a killing spree and relentlessly hunts her sisters.

Zero's left arm is prosthetic. She gains a distinctive flower growing out of her right eye, which continues to grow. Mikhail is her trustworthy partner.