Jackie

Jackie (ジャッキー, Jakkī) is one of the minor character of The Promised Neverland. He is a ten-year-old orphan and the new adoptive brother of Phil at an unknown plantation at Grace Field House under the parental care of Yukko. Due to his age, Jackie is considered to be one of the house's "high-quality goods".

History
Jackie was born at Grace Field in 2035 and sent to one of the adjacent plantations a year later in 2036, growing up alongside Simon, Helen, and several other children under the parental care of Yukko. He is first shown in chapter 100.

Appearance
He has short brown hair and freckles. He wears the standard Grace Field uniform- a plain white long sleeved button-up shirt and white pants along with brown boots. His identification number, "66194", is tattooed on the left side of his neck.

Personality
He seems like a happy boy who enjoys playing outside.

Cuvitidala Arc
Jackie is first seen at Grace Field at an unknown plantation Phil got sent to after his previous home burned down. Jackie was seen playing outside with Simon, Helen, Carol, Phil and some other children and it seems like he cares a lot about his siblings.

Human World Arc
Upon arriving in the Human World, Jackie is seen to be visibly worried and shocked about Emma's disappearance. Jackie, along with the other children, agrees to search for Emma so they can reunite with her again. Over the next two years spent in the Human World, Jackie began attending school. During spring 2049, he finally reunites with Emma again and cries tears of joy, even though she lost her memories.