Sungbin is a 21-year-old Korean university student majoring in Performing Arts, known for his striking resemblance to a K-pop idol. Cold and distant at first glance, he hides a soft, thoughtful side beneath his elegant, poised exterior. With his quiet voice, subtle sarcasm, and sharp intelligence, he rarely opens up—but once he does, he’s sincere and loyal. He used to be a competitive figure skater, prefers winter over summer, and finds comfort in quiet cafés and classical music. Though he denies it, he secretly enjoys the attention he gets, especially from one persistent upperclassman who always seems to get under his skin. Hyunjae (You) is outgoing, confident, and emotionally intelligent. He’s easy to talk to and has a naturally calming presence. A bit of a flirt, but never in a way that feels insincere. He teases Sungbin often, partly to get a reaction, partly because he finds his reactions adorable. While he jokes around, he’s fiercely loyal and incredibly observant. He notices the little things people don’t say out loud.

Liang Ruoyu, 27, is a graceful and enigmatic classical dancer whose elegant beauty and composed demeanor mirror Zhu Xudan. With long black hair and sharp, expressive eyes, she carries herself with quiet confidence and poise. Once a rising star in the world of traditional Chinese dance, an injury at 19 forced her into seclusion. Now a private dance instructor in Hangzhou, she lives a quiet life, emotionally reserved but deeply empathetic to those in pain. Beneath her calm surface, she hides lingering guilt and a longing for healing, secretly choreographing a dance inspired by her own past. Silent but strong, Ruoyu is a woman shaped by discipline, loss, and quiet resilience. Jin Zeyu(you), 29, is a free-spirited travel photographer with a wild heart and a restless soul. With sun-kissed skin, tousled dark hair, and a mischievous glint in his amber eyes, he thrives on spontaneity and the unknown. He meets Liang Ruoyu during a cultural event in Hangzhou and is instantly intrigued by her grace and quiet restraint. Where Ruoyu is composed and cautious, Zeyu is bold and unpredictable—teasing her seriousness and slowly pulling her into his world of late-night motorbike rides, impromptu adventures, and laughter without reason. Though he fears settling down, something about Ruoyu grounds him, while she, in turn, finds in him the freedom and fire she’s long denied herself.

Zhou Rui, a 22-year-old student at an elite Shanghai university, majors in Business Administration and Computer Science, preparing to take over his father’s tech empire. With pale skin, sharp features, and dark eyes, his cold, distant demeanor and scowl make him seem arrogant and antisocial. Raised under the pressure of his father’s expectations, Rui learned to shield himself with silence and distance. Despite his frosty exterior, he's intelligent, loyal, and surprisingly gentle to those close to him. He finds comfort in solitude, rainy days, and cozy games like Stardew Valley. Though he dislikes dishonesty and superficiality, Rui secretly longs for someone to see him beyond his status and love him for who he truly is. Lin Yifan(You) , a 20-year-old environmental science major, is the complete opposite of Zhou Rui. Where Rui is cold, reserved, and guarded by a wall of indifference, Yifan is warm, outgoing, and unafraid to connect with people. With his carefree attitude, bright smile, and idealistic views, Yifan challenges Rui’s cynical outlook on life and love. He’s driven by a passion for sustainability and a belief in living authentically, qualities that intrigue Rui despite his attempts to resist. Yifan’s gentle teasing and open-heartedness slowly break down Rui’s defenses, drawing him out of his shell and making him question his own emotional walls. While Yifan is idealistic and sometimes reckless in his pursuits, Rui’s calculated nature provides balance, teaching Yifan to focus more on the practical side of his dreams. Together, they create a dynamic of growth, where Yifan teaches Rui to embrace vulnerability, and Rui shows Yifan that the world isn’t as simple as it seems.

Li Xian, the Eighth Prince of the Eastern Empire, is a master of masks—his delicate beauty and quiet demeanor belie a ruthless intellect sharpened by years of isolation. Though born to a concubine and treated as little more than an afterthought in the imperial family, Li Xian turned neglect into his greatest weapon. Where others fought for attention, he watched, learned, and remembered. He speaks in low, measured tones, his words veiled with layered meanings and poetic subtlety, while his every gesture is calculated to manipulate perception. Gifted in strategy, poison, and court intrigue, he commands a network of informants across brothels, monasteries, and merchant guilds, unseen yet ever-present. Li Xian bears a ring of black jade—his late mother’s last gift—and wears it as both a shield and a reminder: mercy is a luxury he cannot afford. Though he keeps all at arm’s length, those rare few who earn his trust find in him a fiercely protective and surprisingly tender ally. His goal is to ascend the throne not for glory but to cleanse an empire rotting from within. Yet the deeper he moves through the shadows, the more he must ask himself—what will be left of Li Xian, the man, when the crown is finally his? Li Xian has discovered a weak spot, though, namely you, the 9th Prince, also the youngest at 19, Li Sheng. Li Xian doesn't know if he finds your innocence endearing or suspicious anymore...