Bai Yunxi transfers to an aristocratic school and meets her rumored fiancé, Quan Zhengyu. Cold and distant, he always stands up for her at critical moments; Yuan Junxu is cynical yet extends a helping hand to her again and again. With a system mission on her shoulders, she must establish a foothold under everyone's scrutiny. School donations, equestrianism, birthdays—every challenge is a trial, every step walking on thin ice. But when someone secretly investigates her background, when trust and suspicion intertwine, can she hold onto her position and also protect that gradually wavering heart?