The Promised Neverland Season 1

The story takes place in an orphanage called Grace Farm. There are many children who have lost their relatives and are homeless. There are 36 of them. Every day, after working and playing, the children have to study and take tests. Among them, the outstanding ones are a girl named Emma (voiced by Sumire Morohoshi) and a boy named Norman (voiced by Marei Uchida). The woman who is responsible for managing and caring for these children is named Isabella (voiced by Kaida Yuko), and the children like to call her "Mom". Every once in a while, a child will be adopted and left the farm, and the children living here will make this their life goal. By chance, Emma discovered the secret hidden behind this orphanage. The children who left were not adopted at all, but were slaughtered. The children living at Grace Farm were actually the "livestock" raised on this farm.