(Note: I wrote this book when I was fourteen. So yeah it's crooked and broken and needs major editing.) Someone's happiness can become someone's pain. Isn't it true? Taking revenge is a thing considered to be a sin as it makes a person to repeat the same sin that the sinner is guilty of. In this world, people take birth and perish after their death. But is it the same with all of them? Even after death, some oath bounds a person to become a spirit and seek what they need. The spirits wanting their revenge are considered evil, isn't it? The world says that a person must apologize for being cruel and heartless but does it apologize to the person for making him heartless? No one in this world is heartless or cruel by birth. The mercilessness of this world forces him to become one. That girl faced such pain and loneliness. Her friends became the reason of her death. She took an oath and then everything changed. She was killed here, in the Room No.13. The Heaven Academy was a school with students who always wore a deadly glare and a grim expression on their face. The sadness and loneliness of this school is a bizarre thing. What happens when Isabella discovers that she carries a curse within her? Will she be able to destroy the curse or will she perish and be destroyed here, in this school and in the Room No.13? ©All Rights Reserved 2017 AnimeWings