An advent calendar like any other with 24windows counting down the days until Christmas. Behind each cardboard flap is the severed testicals of an orphan to reward the eager child.
"Mummy bought me the wrong nadvent calendar this year... i don't like the black ones!"
to be unaware, uneducated. lacking experience with everyday life. Natural or artless simplicity. Pure, unknowing, uninformed; stupidly innocent. usually applies to lacking wisdom with lesser age.
The girl showed her naïveté by ignoring the warnings about the strange boy. She decided to date him anyhow.