Asagao belongs to the secluded all-female ninja group Akane Class as part of Team Dog. She stands notably tall with tanned skin, a substantial chest, and blonde hair typically tied in twin pigtails. Her defining trait is an intense passion for eating, preferring four or five daily meals over three and viewing skipped meals as the ultimate punishment. Despite her kunoichi status, she lacks proficiency in ninjutsu and combat skills, exemplified when a transformation jutsu attempt backfires, turning her into a fish instead of mimicking a man.

Within Team Dog, Asagao operates as a supporting member alongside teammates Tsubaki and Sazanka. Her tall, easygoing demeanor contrasts sharply with Sazanka's smaller, volatile personality, forming an "odd couple" dynamic. Asagao's gullibility surfaces when Sazanka bribes her with extra meat to avoid duties—a tactic exploiting her food obsession. This often sparks team conflicts through their bickering, requiring interventions to restore cooperation.

Her attire includes a dark midriff-baring top with detached sleeves, shorts, thigh-high socks, and a Dog Symbol headband aligning with her team's theme.