Princess Eleanor of Ardennes was born with a birthmark of thorns on her wrist. During her coming-of-age ceremony, she was framed as an unlucky person by the high priest. Her inheritance rights were taken away by her sister Lila, and she was expelled to the border by her father. While wandering, she witnessed the temple colluding with the count to arrest children with ancient blood for sacrifice, and countless families were destroyed. She met Kyle, a wandering knight who had protected the ancient blood for generations. With the help of herbalists, blacksmiths, refugees and nuns, she slowly uncovers the conspiracy of the thousand-year blood sacrifice: her father and Lila have been coerced by priests all year round, and Kyle pretends to betray her just to protect her secretly. During the coronation ceremony, Eleanor led the crowd to uncover all the evidence of the crime, destroy the sacrificial knife, and abolish the blood sacrifice and hereditary kingship. The crown was melted into a farm tool, and the four parliaments jointly governed the country. Eleanor, who shed the shackles of prophecy, finally protected the kingdom and ushered in a peace without killing.