Your Everything (きみのすべて, Kimi no Subete?) is the one-hundred and eightieth chapter of The Promised Neverland manga.
Synopsis[]
It is revealed that all of Emma's memories about herself, her family, and every event in her life prior to arriving in the human world is erased. Emma is taken in by a kind elderly man, and tries to find out who she really is.
Plot[]
Emma previously told them that she was able to make the promise without a sort of consequence, and that their suffering was the price of admission to the human world. But that was a bold faced lie as it's revealed that Emma had to sacrifice all of her memories in order to fulfill the new bargain.
Emma was sort of telling a half-truth when she noted how the demon fulfilling the promise was interested in her family, and couldn't touch them because they are involved in the deal. But as a form of payment, the demon instead asks for Emma's loving memories of her family and told her that she'll never see her family again.
She accepts without hesitation, and suddenly awakes in the human world in a cold and far-off place away from the others. As the penultimate chapter comes to an end, it's clear that the Grace Field House kids have been searching for her for some time. She might not have her memories, but she's still got an emotional resonance from them left.