Lycoris are a group of all-female agents who serve as the DA's field operatives. Their main duty is to neutralise potential threats to public safety, and are authorised to use lethal force in order to do so. The DA adopts, raises and trains all Lycoris from a young age. Agents possess a high physical aptitude and proficiency with firearms.

Lycoris wear a distinctive uniform consisting of a white shirt, blazer, bow tie and skirt. This was purposely selected to mimic modern Japanese high school uniforms, as they would be the least alarming to the general public; Walnut refers to this as a form of "urban camo". A Lycoris' uniform also denotes their rank.