A character from Blue Archive. Member of the Remedial Knights.
Her full name is Sumi Serina.
white nurse cap, pink hair ribbon, white coat, white shirt with white sailor collar and black bowtie, black pleated skirt with white petticoat, black cross-laced ankle boots, white pantyhose, brown satchel. Uses a first aid kit and an L85 assault rifle with an underbarrel syringe.