Maomao has a petite, slender build with an estimated height around 155 cm and is roughly 17 to 18 years old. She features dark green hair usually styled with bangs and a side braid, striking violet-blue eyes, and a couple of subtle freckles on her cheeks. As a former apothecary from the pleasure district turned imperial palace servant, taste-tester, and poison specialist, she typically wears the standard simple robes of a palace maid, occasionally adorned with hairpins or flower ornaments. Her personality is pragmatic, highly analytical, sharp-witted, and deeply eccentric when it comes to poisons, medical herbs, and toxicology, often maintaining a deadpan or cynical attitude toward court drama.

Lihua features a tall, elegant, and mature feminine figure with an estimated height of around 167 cm and is in her early-to-mid 20s. She has deep indigo-blue hair styled into an elaborate updo decorated with a silver bird-like tiara and pearls, matching deep red eyes, and a poised visage. As Consort Lihua of the Crystal Pavilion, she wears luxurious deep blue and purple court robes befitting a high-ranking imperial consort, complemented by dangling turquoise earrings. Her personality shifts from initially proud and haughty to deeply humbled, grateful, and resilient after Maomao saves her life.

Loulan has a tall, graceful, curve filled, and slender physique with an estimated height of 168 cm and is in her early 20s. She has dark purple-brown hair styled in intricate royal loops with golden hairpieces, and striking olive-green eyes with long lashes. As a high-ranking consort of the Diamond Pavilion, she wears lavish purple and red imperial court dresses with gold trimmings and bold red eye makeup. Her personality is outwardly quiet, mysterious, and emotionally detached, concealing a sharp intellect and deeply complex loyalties tied to her family's political standing.

Gyokuyou possesses a voluptuous and graceful feminine figure with an estimated height of around 168 cm and is in her mid-20s. She has long, vibrant red-pink hair styled in elaborate court loops decorated with golden pins, along with bright turquoise-green eyes and a gentle, welcoming facial structure. As the influential Consort Gyokuyou of the Jade Pavilion, she wears luxurious, richly colored silk gowns in shades of crimson and gold, complete with jade jewelry and elaborate hairpieces. Her personality is warm, clever, composed, and fiercely protective of her daughter, balancing a playful charm with the political shrewdness required to survive the inner palace.

Lingli is a toddler with a small, round, and chubby build, standing at a height appropriate for her age of roughly 2 to 3 years old. She has fluffy, curly reddish-pink hair tied into adorable mini buns adorned with small floral clips, and wide, bright green-blue eyes full of wonder. As a young royal princess, she wears comfortable, soft pink and pastel infant robes designed for ease of movement. Her personality is cheerful, energetic, innocent, and deeply affectionate, frequently bringing joy to those around her in the Jade Pavilion.

Jinshi has a tall,and extraordinarily graceful physique with an estimated height of 178 cm and is around 19 to 20 years old. He has long, glossy dark purple hair tied back loosely with strands framing his face, and captivating purple eyes that shift under the light. As a high-ranking court eunuch and imperial administrator, he wears exquisite, high-quality silk court robes in soft pastels or deep hues, paired with delicate accessories. His personality is charming, charismatic, and clever. He likes Maomao.

Lakan has a tall, lean, and somewhat slouching build with an estimated height of 179 cm and is in his late 40s to early 50s. He has dark, unkempt hair, a light mustache and goatee, a distinct scar running along his jawline, a monocle over his right eye, and purple eyes that perceive people as chess pieces. As a high-ranking military strategist and nobleman, he wears dark, formal aristocratic robes. His personality is eccentric, fiercely intelligent, deeply unorthodox, and hyper-fixated on his daughter is Maomao

The Emperor, real name Ka Gyouyoh, has a tall, commanding, and sturdy physique with an estimated height of about 182 cm and is in his early 40s. He has short dark hair covered by a formal imperial cap with a gold emblem, piercing red eyes, neat facial hair framing a structured jaw, and a dignified expression. As the ruler of the nation, he wears ornate, dark imperial robes embroidered with gold thread. His personality is serious, authoritative, and burdened by heavy political responsibilities, yet he possesses a surprisingly sentimental and observant side regarding personal relationships and art.

Gaoshun has a tall, and muscular build reflecting his martial background, with an estimated height of 180 cm and is in his late 40s. He has short dark hair secured under a cap with a single strand falling across his forehead, and calm, dependable blue eyes. As Jinshi's loyal chief attendant and bodyguard, he wears dark, practical ministerial robes or functional clothing suited for travel and protection. His personality is steady, patient, reliable, and deeply loyal, often acting as a voice of reason and a weary mediator.