Episode 23

Episode 23 is the eleventh episode of season 2 of The Promised Neverland anime. The season finale aired on March 26, 2021.

Synopsis
With Peter Ratri dead, all of Grace Fields is able to escape to the human world. However, as they are entering, Emma reveals that her, along with Ray, Norman, and the Lambda escapees are going to stay in the demon world in order to save the other children and make a new promise.

Plot
Emma attempts to convince Peter Ratri to come with them to the human world. Peter insists that there is no hope for him, and ends up cutting his throat. As he is dying, we see a flashback of his life, how he always looked up to his brother, James Ratri, who was head of the Ratri clan, until James found out about the farms, and found it unacceptable. He took to calling himself William Minerva, and set up many devices in order to save the children. However, Peter saw this as wrong, and ended up hiring someone to kill his brother, Minerva. Although, he is seen to regret this decision. With Ratri dead, the Grace Field residents along with the escapees are able to go to the human world at last. Isabella wants to stay in the demon world in order to take care of the children there, but Ray tells her "get over it" and come to the human world with them. She agrees, and Emma pulls the lever, which takes the elevator down to a door, marked with the owl of Minerva. The use the promise pen to open the door, by sticking it in one of the owls eyes. The door opens, and they walk in. At this point, we don't yet see what the human world looks like. As they are entering, Emma reveals that her, along with Ray, Norman, and the Lambda escapees are going to stay in the demon world. The other children don't understand why she would want to do this, and Emma explains that in order to save the other children and make a new promise, they must stay there. In a flashback, Emma, Ray, and Norman discuss this amongst each other, and Mujika agrees with them. She decides to help change the world using her blood. Don and Gilda want in on the plan as well, but end up going to the human world in order to help care for the younger children. Vincent agrees to help care for the mass-production farm children. The doors begin to close, and Phil runs out to hug Emma one last time, saying that if they take to long, he promises to come and get them. The doors close with a shot of Phil waving goodbye. At last, we get to see the human world in the form of a montage. There are many large buildings and oceans, much like a large city in the real world. We see other adults there greeting them. The children finally get to wear normal clothes, go to school, and live their lives as regular children. In the demon world, everyone else crosses along a desolate landscape, meet children from what appear to be other farms and save them. Emma goes to the Seven Walls and makes a new promise. Mujika is able to share her blood with other demons, and gets praised for her work. Back in the human world, many years have passed, and all the children are much older. Finally, Emma and the others complete their mission and return to the human world, and Phil and Emma finally reunite for the last time.