Ai

Ai (アイ) is a character in DARLING in the FRANXX. She is the daughter of Mitsuru and Kokoro, and the eldest of their four children. She is also the first child to be born to the Parasites.

Appearance
Ai is a young girl who greatly resembles her mother. She has long wavy ashen blonde hair, the same color as her mother's, which she wears in different styles: as a toddler, she wears her hair in small pigtails at the top of her head and by the age of ten, she styles her hair in braids. Although her facial features takes mostly after that of Kokoro's, she inherited her father's vert paon (piercing deep green) eyes, and her bangs are round like Mitsuru's.

Personality
She seems to have inherited traits of her mother’s personality. She is a very cheerful and precocious child.

Episode 17: Eden
Kokoro, who had been growing curious about pregnancy and childbirth after reading a baby book, made a sudden pass at Mitsuru, who was confused and rebuffed her. The Nines later berated her for her desire to have a child in case she dies in battle. Mitsuru comforted Kokoro and they ended up sleeping together, unknowingly resulting in her pregnancy.

Episode 22: Stargazers
After suffering from morning sickness, Kokoro is told she is pregnant. As their memories were forcefully altered, she and Mitsuru are shocked and both are troubled with the indecision on what they should do. Initially, it is recommended for them to terminate the pregnancy for the sake of their piloting duties. In the next episode, Mitsuru tells her his newfound reason to live is to protect her and the baby.

Episode 24: Never Let Me Go
After they decide to keep the baby, Kokoro’s pregnancy is monitored while Mitsuru fully supports her and she later gives birth to their daughter Ai. Mitsuru is overcome with love for his daughter when he first sees her, and it brings him to tears when she holds his finger. Everyone else rejoices at her birth and shows her great affection. Growing up, Ai is loved dearly by her parents, especially her father.

Two years later, while playing in the field, Ai looks at Zero Two’s statue and begins saying “Darling”. Kokoro and Mitsuru hear this and alert everyone. They all join hands to send their thoughts to Hiro and Zero Two while the two fight the VIRM. Mitsuru says he and Kokoro chose the name Ai because he learned it means “love” and they wanted it to be symbolic to Hiro and Zero Two’s bond. After Hiro and Zero Two sacrifice themselves to destroy the VIRM, Ai comforts her mother who cries. Over the next eight years, she has a younger brother and sister and an unborn third sibling.

Kokoro
Ai’s mother. Prior to becoming pregnant, Kokoro deeply yearned to bear a child to leave behind a mark for the future for when she dies, but she loses this desire after her memories are altered. Although initially undecided on what to do after learning of her pregnancy and appearing distraught by the news because keeping the baby would mean the end of her ability to pilot a FRANXX, she gradually comes to love her child and finds a new purpose in life by raising her child. When Ai is born, Kokoro is happy. Kokoro loves her daughter very much and often carries her around.

Mitsuru
Ai’s father. Upon learning of Kokoro’s pregnancy, although shocked at first, Mitsuru is less upset than Kokoro but he also doesn’t know what to do. After realizing the importance of being a parent and unwilling to let Kokoro deal with it alone, he develops a deep desire to protect his child and admits he wants her to have the baby, to the point he chooses the baby over remaining a FRANXX pilot. He becomes protective and supportive of her when they decide to keep the baby. When Ai is born, Mitsuru cries out of joy. He loves his daughter very much and dotes on her.

Etymology
Ai was named by her parents for "love" (愛). They wanted her to inherit the loving bond that Zero Two and Hiro had.

Quotes
"Huh? Darling, darling! Papa, 'darling!'"

- Episode 24

Trivia

 * Ai is the first naturally conceived child to be born to parasites.
 * Her name was chosen by her father, who says he found it from a book that detailed the meaning of love.
 * In the MATO comic, she seems to like hearing stories about her parents, as she asks Miku to tell her about them.

Ai