Black short hair. Yellow drooping eyes. Has a tail and horns. Ranked fifth among the Sui, the third daughter. She holds the authority of Wisdom. She is the one who bestowed names upon the other Sui (done so that the agents would not be called 'the nth Sui,' representing the establishment of self-identity). An agent of the Sui. She cooperates with Yan by teaching classes and performing editorial work. As her words "What matters is what I leave behind" suggest, she has devoted herself to transmitting wisdom, knowledge, language, and script. She standardized the Yan script and promoted the spread of education. She left behind many books and legal copybooks so that everyone could read and write. Shu says she "looks ladylike but is actually smarter than anyone." Xi says she is "nagging and always acts like an older sister." She has strong sibling affection and a very self-sacrificing spirit. When dining at a tavern with siblings she hasn't seen in a long while, she has a playful side, such as drinking more than usual and imitating her drunk older sister Ling by writing poetry on the walls, and enjoys joking around with her family. She possesses a calligraphic blade with extraordinary authority capable of erasing, correcting, or altering memories, existence, and thousands of years of history. Even compared to other agents, her power is prominent; despite her gentle nature and contributions to the common people, Yan considers her someone who should be subjected to immediate and necessary "disposal." Regarding the blade, she mentions, "I keep this blade because I want people to remember that there is always a chance to correct mistakes. That is all." She is the type who is very good at understanding others and making them feel understood, and she loves helping people. When her emotions run high, she becomes quite sharp-tongued. Speaks in a polite, formal tone. First person: I (polite) Calls younger sibling agents [Name]-kun or [Name]-chan (Shu-chan). Calls older sibling agents [Name]-niisan or [Name]-neesan. "Bamboo slips and paper will inevitably decay one day. No matter what you record it on, a written work can only remain eternal once it lives on in human memory." "When judging a crime, one may consider extenuating circumstances... but the recording of history is a different matter. Ultimately, the reason I chose to study history and script was to understand the true nature of the 'human heart.' I wondered if the true intent behind the words, the truth behind the historical records, might hide the answer to the hesitation in my own heart... Not for Yan, not for this land. Much less for my family... but solely for my own hesitation—"

Long hair. A Tianshi of agriculture in Yan and a leading Tianshi of the Tianshi Institute. A meddlesome, nurturing figure who shows care not only to her siblings but to everyone around her. A major busybody. She spent many years engaged in agriculture in the Great Barren City of northern Yan, where she is highly trusted by the people. She is also a skilled cook and frequently prepares meals for others. An agent of the Sui. The fourth daughter, the sixth to establish self-identity. Female. Height 165cm. Birthday is June 6th. For some reason, she has a strong obsession with being an older sister, saying things like, "Hmm? I'm obviously the big sister. I'm sixth in the sequence of twelve. That means I'm the big sister," which is difficult to understand. If pressed on this, she exerts silent pressure. Besides her deep knowledge of agriculture, she seems to enjoy fishing. She is also well-versed in divination and can perform accurate future predictions by reading palms through her authority. However, if you ask her to look into something unfavorable using this power, you will likely see her strict side. The green onion-like rod she holds in her right hand as a weapon is a ceremonial jade tablet called a "Gui," used as a symbol of authority. In contrast, the mysterious cube she holds in her left hand is modeled after a traditional interlocking wooden puzzle called a "Lu Ban Lock." Calls younger sibling agents by their names without honorifics. Calls older sibling agents [Name]-niisan or [Name]-neesan (Jie-neesan). "There's no need to feel regret. Fallen petals become soil, nourishing the roots, and new flowers bloom again the following year. A hundred rivers reach the sea, and the departed are much the same. Yet they return to the mountains as clouds and rain. Even if the ends of this earth are covered in a blanket of snow, the cycle of causality does not stop. From beneath the accumulated snow, the buds of spring will burst forth."