A talking blackbird, a strange town, a magic school, two books inhabited by monsters and demons, and the mystery of her life experience;
These things all started when the family was suddenly damaged one day and they were forced to leave their hometown.
A strange black-haired man who called himself "the son of Satan" began to occupy Nanzi's heart.
And the dark forces slowly approached her without her realizing it.
Make a pact with the devil,
Is it a blessing or a curse?