*Kusu is the Guide Angel of Universe 10 and the attendant, and martial arts teacher of Rumsshi. She is the oldest child of the Grand Minister.

Kusu is a short humanoid who, despite being the Grand Minister's eldest child, bares the appearance of an early teen girl with pale blue skin and white hair, just like the other Angels although she wears it as a single braided side pigtail and her hair combed in the 80/20 ratio. She carries her Angel Attendant's Staff in her right hand. Like the rest of angels, she has a large light blue halo around her neck. Her attire consists of purple robes, a black cuirass, and a pink sash. Unlike her sisters Vados and Marcarita, who wear high heels, Kusu wears black winklepicker-like shoes with white spats like those worn by her brothers.

Kusu is known to always advise both Gowasu and Rumsshi on the difference between good and evil. However, watching clashes between good and evil gets her blood racing. She is fascinated by sharpness of muscles of the members of the Team Universe 10.[4] She appears to have a flamboyant and rather showy attitude, as seen when she introduces the fighters of Universe 10 in a manner similar to a game-show hostess, revealing a more excitable lighthearted side. Though despite her size and appearance, she is actually the oldest of the family of angels despite her seeming to be more interested in dancing.

She is explicitly shown to be the most emotional of her species, having fun quite easily by the company of her fellow deities, as well as mortals, and is visibly upset at even what is trivial for her fellow Angels, such as the defeat of her subordinates at the Tournament of Power, being clearly frustrated and having her mood dampened by the defeats of at least the last three of the Universe 10 warriors: Zircor, Rubalt, and Obni.

In direct contrast to Mohito, who was nonchalant and even smiling regarding the destruction of his universe and its gods, after Universe 10 was erased from the Tournament of Power, Kusu quietly mourned the erasure of her superiors, subordinates, and home; showing that she respected, cared about, and was emotionally attached to her gods, mortals, and Universe despite her own life being spared; displaying sadness and grief, something which no other Angel has been shown to have.

Being Rumsshi's martial arts teacher, it can be assumed Kusu is stronger than him, making her the strongest being in Universe 10.*