The Tale of the Skin Princess is the unofficial title for the story that Charles presumably narrates after crying with Anri when he offered to commit suicide with her. This directly mirrors Anri's character in the True Realm, especially considering the lines of "It's not my fault".
The Tale of the Skin Princess[]
Once upon a time in a far, far away land, lived the Skin Princess.
Every day she changed her skin
To appear in the best light
To every single person she met.
Every night she ripped her skin off
Crying from the unbearable pain it caused her
Whispering,
"It's not my fault"
"It's not my fault"
"It's not my fault" over and over
Little did she know
That all the people in her kingdom
Were blind to begin with.