"Just a little smile would do the trick..." The famous saying of Anastasia Joane , 15 years old. Anastasia's father died right when she was born and then her mother next when she was 5 years old. She brought into a daycare wherein also other kids without parents live in. Anastasia is the 'big sis' in the daycare. Almost every kid there loved her. Until one day , Pitch Black , the Boogeyman , decided into making a nightmare to one little girl in the daycare. Of course , Anastasia as the innocent and pure hearted girl , heard the cries of the girl. The only trick that made the little girl calm down into her sleep is Anastasia's lullaby. Of course , Pitch , as the Boogeyman would be very angry. How could a human 15 year old girl defeat him? Will Pitch now try on appearing right at Anastasia's world? Will he let her continue this absurd 'lullaby' of hers? Will Pitch also discover one fragile part of Anastasia?