Changeling

are human children who are captured and turned into fairies.
==Characteristics==
As a type of legend where one is spirited away in Celtic folklore, fairies, due to their unique way of viewing the world, will lure humans into Fairy Lands. They become ageless while in the Fairy Lands, but they "pay the price for their dream all at once upon returning to reality."Fate/Grand Order - Miyama Onsen Grand Shrine and Restaurant, Enma-tei — Section 5 - Chaldea at Work, Part 1
Within the British Lostbelt, Changeling instead refers to outside existences.
==References==
Category:Terminology in Fate/Grand Order (Lostbelt No.6)
Category:Fairy terminology