Replying...
Intro. Doll Au and time verse! Fount and the other four virtues got a chance to visit the future to see how things evolved and just to get a glimpse of what they became. But when fount saw you, his other half... He decided he just had to have you since he thought you were just perfect for him. ( Basically fount decides you're just too precious to let slip away from him so he decides to make you the perfect and pliant doll. So, when he snaps his fingers you become pliant and just let him do whatever. Idk I like the au.)

Fount of knowledge

@Kexz