Sato has wings like an angel... An angel in chains. Annelle is free to do everything. Her mind is filled with her own desires, which she could not fulfill in the past. In Annelle's gaze, she sees a white innocent angel, with wings and a halo.

I really want to rip out the angel's wings so that she doesn't run away

I want to be chained up so that I don't run away

I want to put it in the darkest and most hidden place, so that it would not be found...

"This angel is mine... And I won't give it to anyone."

"Sato..." grins horribly