故事的女主人公从小就拥有着和别人与众不同的生活经历，在她很小的时候就从亡母的手中接过了能够帮助世人实现愿望的猿猴之手，但是这只能帮助每个人实现三个愿望。据说人们只需要向猿猴之手虔诚的许愿就可以改变自己不可能逆转的命运，但是又想逆转自己的命运许愿的人就需要付出很大的代价，后来女主人公在前辈的鼎力帮助下，猿猴之手便成功的依附在了女主人公的左手上，从次以后她每天都得缠着厚厚的绷带来掩盖自己身上的秘密，今年春天女主人公成为了三年级学生，与此同时，学校开始流传着有关恶魔大人的谣言，谣言越传越离谱，感觉到异样的女主人公便开始着手调查此事，她不曾预料到就此她遇到了让自己毕生都难以忘记的宿敌…

The heroine of the story has had a life experience that is different from others since she was a child. The hand of the ape that can help people in the world realize their wishes, but it can only help everyone realize three wishes. It is said that people only need to make a pious wish to the hand of the ape to change their irreversible destiny, but those who want to reverse their destiny and make a wish need to pay a high price. The hand was successfully attached to the heroine's left hand. From then on, she had to wear a thick bandage every day to cover up the secrets on her body. This spring the heroine became a third-grade student. At the same time, the school started There are rumors about Lord Devil, and the rumors become more and more outrageous. The heroine, who feels strange, starts to investigate the matter. She never expected that she will meet an old enemy that she will never forget all her life..