This is the story of a 19th century British demon butler and a down-and-out boy.
The boy was once the young master of a noble family. After being framed, he was the only one left in the family. The boy was determined to take revenge and summoned the devil. The resurrected young earl has a contract with the deacon. The devil will help the young man get revenge. After the goal is achieved, the young man's soul will be swallowed by the devil.
Unfortunately, in an accident, the boy's soul was targeted by another demon. Although the boy's demon finally defeated the mistress demon, the boy was turned into a soulless demon. The deacon could never devour his boy, but the contract still bound them.
Will the devil who has lost his soul continue to stay with the boy? Will the eternal ending that many humans dream of really be a happy ending?
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