**November** is one of Marciano's Twelve Sisters, combat androids serving as assassins for the Criminal Guild. She operates within a triplet unit alongside October and December, all designed to resemble human children approximately eight years old. The three share identical features: blond hair in ponytails, large brown eyes, and matching Victorian-era sailor suits. Each carries a distinctively colored teddy bear backpack; November's is pink, containing her primary weapon, an H&K MP5 submachine gun. Despite their youthful appearance, their android construction grants them greater weight than human children.

The triplets act in near-perfect synchrony, inseparable and always operating within close proximity. They exhibit programmed childlike personalities, frequently making pleas such as "We're hungry, can we eat first, Mother?" or chanting requests like "canned peaches, canned peaches!" during missions. While their biological need for sustenance is unclear, this behavior reflects deliberate personality design. They approach missions with playful enthusiasm, treating combat and destruction as games—gleefully flipping an armored truck while shouting "Upsey-Daisy!" showcases their unexpected physical strength.

Functionally, November and her sisters act as a single cohesive combat unit. They pilot specialized three-seat space fighters and execute tactical maneuvers like overwhelming targets with concentrated submachine gun fire. Their programming allows for autonomous mission execution, demonstrated by their unsupervised takeover of a space station's gate control room. They remain loyal to Marciano, addressing him as "Mother," though their focus sometimes drifts toward personal amusement over mission objectives. Across the series and related media, November exhibits no individual backstory, distinct traits, or character development separating her from her triplet sisters.