Original Name (Japanese): ピノコ
Romaji Name: Pinoko
Nicknames: Pinoco, Penny, Peach
Series: Black Jack Specials: Inochi wo Meguru Yottsu no Kiseki
Age: 18 years old
Weight: Unknown
Height: Approximately 3 feet tall
Date of Birth: Unknown
Blood Type: Unknown


Pinoko is the loyal sidekick and assistant to the skilled doctor Black Jack. Despite her childlike appearance, Pinoko has a mature and caring personality. She often helps with chores and even assists Black Jack with some of his medical procedures. Pinoko is very devoted to Black Jack and considers him a father figure, often referring to him as “Sensei”. She can be stubborn and mischievous at times, but her kind nature and strong desire to help others make her an integral part of Black Jack’s life.


Pinoko is not a normal human girl, but a Teratogenous Cystoma, a rare type of tumor or growth. She lived in the body of one of Black Jack’s patients for 18 years before he extracted her and gave her a prosthetic body. After being rejected by her twin sister, Pinoko came to live with Black Jack and has been by his side ever since.

Advertisement anime casetify


Pinoko has a very petite and childlike appearance, standing about 3 feet tall. She has pink hair styled in two buns and large, expressive eyes. Despite her youthful appearance, Pinoko claims to be 18 years old. She often wears a white dress with a red bow and has a robotic prosthetic body.


Though not a medical professional herself, Pinoko has acquired a considerable amount of medical knowledge from assisting Black Jack over the years. She is able to assist with basic nursing tasks and can even provide useful input during some of Black Jack’s procedures. Pinoko’s small size and dexterity also make her well suited for assisting with delicate medical work.


Pinoko’s origins are quite unique, as she was not born in the traditional sense. She was originally a Teratogenous Cystoma, a rare type of tumor that grew inside the body of one of Black Jack’s patients. After 18 years, Black Jack extracted Pinoko from the patient’s body and gave her a prosthetic body, effectively “creating” her as his assistant and companion.

Pinoko – FAQ

Here are 6-8 FAQs about Pinoko from “Black Jack Specials: Inochi wo Meguru Yottsu no Kiseki”:

Who is Pinoko?

Pinoko is a young girl who appears in “Black Jack Specials: Inochi wo Meguru Yottsu no Kiseki” anime. She is the adopted daughter of the brilliant but unorthodox surgeon Dr. Black Jack. Despite her small stature and childlike appearance, Pinoko is highly intelligent and capable of performing complex medical procedures under Black Jack’s guidance.

Advertisement anime casetify

What is Pinoko’s backstory?

Pinoko was originally a teratoma, a type of tumor that contains partially formed body parts. She was removed from the body of a young girl by Dr. Black Jack, who then raised and cared for her, eventually adopting her as his daughter. Pinoko has a unique physiology and medical condition that is an important part of her story.

How old is Pinoko?

Pinoko’s exact age is never given, but she is described as a child who often acts and looks much younger than her actual age. Some sources estimate her to be around 8-10 years old, though her development is unusual due to her unique origins.

What are Pinoko’s abilities?
Despite her small size, Pinoko is highly intelligent and has excellent medical knowledge. She is able to assist Dr. Black Jack in complex surgical procedures and has demonstrated the ability to perform medical tasks such as administering anesthesia. Pinoko also has a strong sense of empathy and often acts as a moral compass for Black Jack.

What is the relationship between Pinoko and Dr. Black Jack?

Dr. Black Jack rescued and adopted Pinoko, and the two share a close father-daughter relationship. Pinoko is very devoted to Black Jack and often accompanies him on his medical adventures. Black Jack, in turn, cares deeply for Pinoko and is protective of her, though he can be stern at times.

How does Pinoko’s unique physiology affect her?

As a former teratoma, Pinoko’s body and development are quite different from a typical human. She has some limitations, such as a small stature, but also unique abilities, such as advanced medical knowledge. Pinoko’s unusual condition is an important part of her story and the challenges she faces.