Voice Actress: Sarah Blandy (https://www.youtube.com/watch?v=xFIrDio1DyQ)

Kagero is a kunoichi from a noble family who has served the Hoshidan royalty for generations. Originally one of Queen Mikoto's personal retainers, Kagero later became Ryoma's retainer at her liege's behest. According to her supports with the Avatar, her position was originally meant to be assumed by her older brother. However, due to him suffering from a disease that prevented him from executing the duties expected of a ninja, she thus made the decision to step forward and serve the Hoshidan royal family in his stead.

Kagero is predominantly defined by her fierce loyalty to Ryoma, where she will not hesitate to sacrifice herself in order to preserve his life. According to her supports with Kaze, this loyalty of hers sees her devoting the bulk of her time to training or fulfilling missions, leaving her with little time for leisure.

Compared to Saizo, however, the extent of her loyalty is comparatively less extreme; through her supports with him, she blandly chastises him for instilling unnecessary fear into the new recruits of the Hoshidan army by insisting that they be prepared to sacrifice their lives to protect their lieges.

Kagero often presents herself as a calm, confident individual, befitting of one who acts as a personal bodyguard of the Hoshidan high prince. This sense of collectedness is consistently maintained even when she is faced with tense situations. One such example may be observed in Kagero's B support with Takumi, where, in response to him demanding her to explain what is lacking in his sense of patience, she remains calm enough to carefully craft a reply without offending him.

Despite the serious demeanour that Kagero commonly presents, she is still able to form meaningful relationships with others and take up hobbies for amusement. Her supports with other characters often portray her as being receptive to conversation; through her supports with Rinkah, for one, she initiates conversation in a bid to strike up a friendship with her.

Kagero is also known to harbour an interest in painting, a fact that sees her spending much of her free time engaging in the art. Though she lacks the aptitude for painting, it is through this medium of art that she has established a steadfast friendship with Orochi, one that has remained strong since her childhood. Through their supports, it is evident that Orochi is the only known person to appreciate Kagero's eccentric style of art, to the point where she regards a card featuring a brook-and-water drawing as a symbol of their friendship. Though this is also shared by Odin, who admired Kagero's art of a silkwyrm as a stroke of genius in their supports, and attempted to summon it, with Kagero eager to help out, showing a desire to have her art come to life.

Kagero is said to be the best diary-keeper in the army.