Wei Yin is a resilient young woman from a rural farming village severely affected by a long-lasting famine. Driven by a desperate need to provide food and stability for her family, she volunteers for a highly dangerous position at the royal court. She possesses a strong moral compass but must carefully maneuver through palace politics to survive. She secretly seeks to learn the forbidden art of reading and writing to wield poetry magic to help her people.

Prince Terren is the second-born prince of the Azalea House and the current heir to the throne. He possesses the powerful sigil magic that commands blades, along with a unique ward that prevents him from dying. His erratic and cruel behavior terrorizes the court. His inner circle remembers him as a once-gentle boy before a wartime deployment and familial pressure changed him.

Prince Maro is the First Son of the Azalea House, known as the Carver of Rivers and Builder of the Salt Road. As the original assumed heir, he is highly popular among merchants for his ability to revitalize trade routes. He struggles under the immense pressure placed upon him by his masters and advisors, seeking to balance his duty to the nation with his complicated feelings regarding his family.

Hesin is an older eunuch who has served the Azalea House since he was a child. He acts as Prince Terren's chief advisor and guardian. His ultimate loyalty lies with the throne and the stability of the Tensha nation itself. He serves as a critical source of history and memory within the palace, recalling the days when the royal brothers were close and hoping to prevent further bloodshed.

Prince Isan is the third-born son of the Azalea House. Unlike his brothers who possess magic suited for war or infrastructure, Isan bears a seal that allows him to summon immense quantities of fruit and vegetation. He is largely ignored by the war-focused court, though the starving commoners view his abilities as miraculous.

Li Ciyi is an opportunistic eunuch serving the royal family who oversees the recruitment of concubines. Though openly elitist and dismissive of commoners, he recognizes political potential and agrees to serve as Wei Yin's secret tutor. He calculates that an alliance with an underestimated candidate might advance his own standing at court.

Lady Silian is the wife of Prince Maro, recognizable by her striking frost-white hair. She is a highly ambitious noblewoman operating in the West Palace, willing to form secretive and risky alliances to secure her husband's path to the throne. She openly operates on the philosophy that true altruism does not exist at court.

Empress Sun Ai is the current highest-ranking woman in the Azalea Dynasty. She actively works to consolidate power for her own clan and her son, utilizing her authority to test, threaten, and manipulate the various concubines in the Inner Court to ensure no rival claims threaten her lineage.

Emperor Muzha is the current ruler of the Azalea Dynasty. He previously claimed the throne following a brutal civil war and heavily overused his salt magic in a desperate attempt to stabilize the nation's economy, permanently breaking his health and leaving him a frail, dying monarch.

Bao is Wei Yin's young, malnourished brother who dreams of going to school. His excitement over a small, seemingly insignificant magical blessing provides Wei Yin with the emotional drive to secure a better future for him.

Lin Wren is the head servant assigned to the Cypress Pavilion. She serves Wei Yin diligently but lives in constant terror of Prince Terren's violent outbursts, quickly becoming entangled in Wei's dangerous secret activities.

Sun Jia is the niece of the current empress and a member of the powerful Sun Clan. She enters the palace believing she is entitled to become Prince Terren's primary wife, making her immediately hostile to the village-born Wei Yin.

Lady Autumn is Prince Terren's mother, a former pleasure worker from the Violet Heron Tower who traveled to the palace seeking wealth and status. Her desperate ambition to secure her son's path to the throne causes her to place immense pressure on him, drastically altering the trajectory of his childhood.

Lady Sky is Prince Maro's mother. She places immense pressure on her son to rapidly develop his magical abilities, fearing that another concubine's child might supplant him in the line of succession.

Aunt Ahma is the proprietor of the Violet Heron Tower in the Tieza District. She is a pragmatic businesswoman who previously employed Lady Autumn and holds dark secrets regarding the royal family's time in the war-torn region.

Hu is an elderly servant who previously had her tongue cut out. Despite her inability to speak, she demonstrates a sharp mind and becomes one of Wei Yin's most dedicated secret literacy students, finding a new voice through the written word.

Tel Pima is a palace scribe tasked with handling written communications for the Cypress Pavilion. He suffers grave injuries when Prince Terren lashes out at him in a fit of misplaced rage, illustrating the extreme danger of palace service.

Zou Minma is a wealthy, well-off city girl who participates in the concubine selection. She initially looks down on Wei Yin for her rural origins, though she also provides her with critical warnings about the deadly nature of court politics.

Jin Veris is a young concubine who initially attempts to poison Wei Yin to gain favor with the powerful Sun clan. When her attempt fails without immediate punishment, she changes tactics, realizing the shifting power dynamics within the Inner Court.

Master Len is a martial instructor assigned to train Prince Maro in combat and military strategy. Like the other royal tutors, he actively discourages Maro from viewing his younger brother with affection, insisting that royal adults cannot afford to play games.

Master Ganji is a strict royal tutor assigned to shape Prince Maro into a prodigious literomancer. He constantly instills a sense of paranoia in the young prince, urging him to prioritize the nation over familial bonds and to view his younger brother as a mortal threat.