Prince Cassian
Leader of the Archangels, prince of the Quartz Kingdom, and the one who saw potential in a girl with black wings.
Prince Cassian is a character in the manga *A Kingdom of Quartz*. He is the leader of the seven Archangels, the highest-ranking holy knights who protect the Quartz Kingdom from Demons. As a prince of the royal family residing in the Citadel, he commands the Angels and holds the title of Archangel. His most notable act is rescuing the young Celes girl Blue from a Demon attack and offering her the chance to become an Archangel herself.
- Role
- Prince of the Quartz Kingdom / Leader of the Archangels
- Affiliation
- The Quartz Kingdom, the Archangels
- Status
- Alive
- Key Relationships
- Blue (the girl he offered to become an Archangel)
- Notable Skill
- Leadership of the Archangels
Lore & Background
Prince Cassian is introduced as the leader of the seven Archangels, the elite holy knights who protect the Quartz Kingdom from Demons. He resides in the Citadel, which floats above the first district of the kingdom, near the great Crystal that powers the realm. During a Demon attack on an orphanage, Cassian witnesses Blue, a young Celes girl with pitch-black wings, unleash a mysterious dark power that destroys a Demon. Recognizing her potential despite the rumors that her black wings mark her as a Demon, Cassian rescues her and offers her a place among the Archangels. Three years later, Blue begins her training at the Helios Training Academy, keeping her dark power secret, with Cassian's offer still shaping her path.
In Their Own Story
One night, invading Demons attacked an orphanage, killing many Celes and even several Angels. Blue, a young Celes girl ostracized for her pitch-black wings, tried to fight a Demon. In her attempt, she grew a mysterious dark power and caused the Demon to explode. Prince Cassian, the leader of the Archangels, caught sight of this event. He rescued Blue from the danger and gave her an offer: to become an Archangel. This moment set Blue on a new path, leading her to begin Angel training at the Helios Training Academy three years later, all while keeping her dark power a secret from everyone, including Cassian.
Reader's Guide
Prince Cassian is the leader of the seven Archangels, the highest-ranking holy knights in the Quartz Kingdom. He resides in the Citadel, which floats above the first district, near the great Crystal that powers the kingdom. His role involves commanding the Angels in protecting the kingdom's inhabitants from Demons. He is a prince of the royal family, living in the Citadel. His defining action in the story is rescuing Blue from a Demon attack and offering her the chance to become an Archangel, despite her unusual black wings and the rumors that she might be a Demon. This offer sets the plot in motion, as Blue begins her training three years later, hiding her dark power.
Did You Know?
- Prince Cassian is the leader of the seven Archangels, the highest title among the holy knights called Angels.
- He resides in the Citadel, which floats above the first district of the Quartz Kingdom, near the great Crystal that powers the kingdom.
- Cassian offered Blue the chance to become an Archangel after witnessing her destroy a Demon with a mysterious dark power.
- The manga *A Kingdom of Quartz* was originally written in English by Canadian artist Bomhat, then translated to Japanese for release.
- The series was serialized in Kodansha's *Monthly Afternoon* from December 23, 2022, to January 24, 2025.