Gu Qingyan (female protagonist), the legitimate daughter of the General's Mansion, aliased as "Baizhi". In the early stage: tough and independent, wary, and escaping from the past; in the later stage: calm and powerful, caring about the world, and daring to take on responsibilities; on the surface: living a stable life, hiding her identity; on the inside: rehabilitating the family and realizing medical ideals; core: seeking identity and self-worth.
Xiao Jingchen (male protagonist) Prince Rui, the prince born to a palace maid. Early stage: sinister and tolerant, scheming, and emotionally paranoid; late stage: caring about the world, learning to trust and love, and knowing how to let go; surface: finding love, fighting for the throne; deep layer: overthrowing the unfair order, fulfilling childhood promises; core: getting rid of the shadow of one's origin, proving one's own worth, and being the guardian and companion of the heroine.
