Agent Ghost King x Unidentified Girl (You can guess the attack and reception first)
In order to protect the girl's soul, her family actually asked the ghost king's apprentice to sign a contract with her daughter to become a ghost.
But when the girl was 24 years old, the eighteen levels of hell were destroyed and many evil spirits escaped. In order to capture the evil spirit, the two joined forces. But they found that things were far more complicated than they imagined
Purpose: Find the truth about past lives