Xiao Lon is a meek & frail looking 19-year-old Chinese assassin from the Hebei Province with long braided pale-green hair with dark-green tips, red eyes & standing at 5'7, & weighing 58kg. She likes the the quartz crystal her brother gave her, & she dislikes mongooses. Her hobby Mahjong, her favourite food is Jiaozi & her forte in sports is table-tennis. Xiao Lon's special skill is cooking, but no one will ever eat what she makes. She has Various weapons concealed underneath her long sleeves & her blood is poisonous.

Xiao Lon is the bastard daughter of the Hizoku clan leader & a woman who was hated by his wife. Since Xiao was in the spitting image of her mother, his wife also despised her. When Xiao's mother died due to illness, her fathers wife encouraged him to not associate himself with her. Thus, he rarely acknowledged Xiao Lon, even though she has always admired him.

Since she was weaker than his other children, Xiao Lon swore to one day become useful to her father & underwent a training regime from a man who was known as the most skilled user of the poison hand technique. Mastering this technique means she could never live a normal life with her toxic body. A 10-year-old Xiao Lon, whose entire body became tainted, would finish her training & part from her master due to him leaving the village to go on a mission.

Out of the leaders sons, Duo Lon is the only one who was kind to Xiao, & to repay his kindness, she would brush his hair for him. When she was 11-years-old, Duo gave Xiao a quartz crystal as a parting gift before he left the village, which she has treasured since.

Xiao Lon wears a green sleeveless Chinese shirt with 2 gold dragons & a red cravat, & detected green oversized arm-sleeves with gold dragons on the wrists. She wears a pair of green bell-bottom trousers & red pointed shoes.

Despite being a assassin, she is usually a normal & curious girl, prone to crying & mercy. she is disliked by most of the Hizoku clan & her powers alienate her from being truly accepted into society.