Isabella

Isabella (イザベラ), also known as Mama (ママ) by the children, is the main antagonist of The Promised Neverland in the first arc and the Mama who runs one of the Grace Field House orphanages, specifically known as Grace Field.

History
Isabella was once an orphan herself in one of the orphanages when she was a child. There she met a boy named Leslie who would become her closest friend. She learned a song from him that instantly became her favorite song. Leslie was later shipped out and killed. Isabella then tried to escape by crossing the huge wall but saw that there was a huge cliff on the other side, this sight crushed all her hopes and she was soon stopped by the Mama of her own orphanage.

Isabella was given a choice: Train to become a Mama or being shipped out, resulting in a certain death. She wanted to live and chose to become a Mama with the thought behind it that she would give all the kids later as much love as she could.

While in training, she became pregnant and she would always sing the same song for the unborn child that Leslie, years earlier, sang for her. Sometime later, the child was taken away from her and she was appointed as the new mama of Plantation 3, becoming the youngest ever chosen to become a Mama.

After a few years being the mama of Plant 3 she heard Ray singing the same song that Leslie once sang for her. She then came to the shocking truth that Ray is in fact, her own son.

Appearance
Isabella is a tall woman with dark brown hair tied into a bun that hangs down onto the back of her head. She wears an attire, which consists of black dress with a white blouse underneath it and a white apron over it, she has the number "73584" on her neck. During her childhood, Isabella wore standard orphanage clothing and her hair was tied in a form of a braid.undefined

Personality
During her childhood, Isabella was shown to be a optimistic, comedic and fun-loving individual, and was very attached to her childhood friend Leslie. But ever since she acknowledged the true motive behind the orphanage's purpose of raising them; to raise them as livestock for the demons, Isabella's personality went through a drastic change.

Isabella now appears as a sharp-witted and deceiving young woman. As a person highly trained as being a mama, Isabella is astute as being one and was hence elected in being the caretaker of one of the top orphanages. Isabella's behavior is very mercurial, capable of switching between seemingly true affection for the orphans to extreme loathing and threat of violence towards those who defies her. Isabella was unhesitant in taking down those who stand in her way (specifically Emma, Norman and Ray), sometimes even physically, this was shown when Isabella attempted to stop the orphans from escaping, she violently fractured Emma's leg without a second thought.

Another few of Isabella's prominent traits are her high cunning and intelligence. As being one of the top Mamas, Isabella uses her intelligence in foiling and sabotaging the orphans' escape plan. She was shown to be quite resourceful, as she depended on her transmitter to track down the orphans. Isabella was unafraid of using her intelligence and position as a Mama to threaten her enemies, as she openly threatens Emma despite knowing it as a reckless and risky move when she seeks to gather information on how Emma and the others are going to escape.

Intelligence
Isabella has shown that she is very intelligent and can find the littlest of details. She quickly and easily found out about the children's plan to escape and has been able to keep all her children healthy and top of the line. she is also quite adept at chess, further proving her sharp intellect.

Enhanced Strength
From being able to lift Emma off the ground and break her leg with ease to lifting heavy objects, Isabella has proven herself to be physically strong.

Trivia

 * According to Kaiu Shirai, he made the main protagonist a female, because Isabella being the first antagonist, is a female too, hence thinking that the mother-daughter relationship between the two would make the story "more interesting".undefined
 * She is the youngest ever to become a Mama.
 * The following are Isabella's rankings in some of The Promised Neverland's official popularity polls.
 * Isabella is ranked 4th in the Popularity Poll that was announced in Chapter 88 of the manga.
 * In Shounen Jump's 2nd popularity poll results announced in Chapter 102, Isabella is in 8th place with a total of 1151 votes.