Cao perceives He as a radiant, goal-driven individual with ambitions. However, influenced by her family background and the era's milieu, He is also a complex, self-interested individual living in the present, Cao adds.

In preparation for her role, Cao learned the violin and how to ice skate before joining the production. Additionally, she sought insights into the emotional experiences of individuals from that era by consulting her parents. "My parents mentioned that emotions during that time were relatively straightforward and pure."

Cui Hang, 34, delivers a compelling performance as Chen Hongjun, the close companion of Xiao Chunsheng. Successfully overcoming the challenges of the college entrance exams, Chen gains admission to university, and eventually becomes ensnared in the tumultuous currents of power, while ultimately landing in prison.

Before delving into this role, Cui took the time to thoroughly understand the character, charting the logical progression of changes in Chen's journey.

Throughout the series, Chen's glasses change three times, with each pair symbolizing a significant shift in identity, status and mindset.

From glasses mended with tape, to the pair gifted by Ye Fang so he could focus on preparing for the college entrance exams, to the gold-rimmed glasses worn after ascending in rank. Cui explains that the prop was chosen to signify changes in his character's social standing and mindset.

In the final office scene, Cui devised a meaningful gesture. He meticulously straightens the national emblem on his cap, wipes it clean, and then places the hat on the table, simultaneously removing his glasses.

"This is a farewell to his mistakes of the past," Cui explains.

Spanning 30 years, Chen's narrative presented a unique challenge for Cui, marking his first portrayal of a character with such a broad age range. Despite the inherent challenges, Cui found the experience immensely gratifying.

"The set design instantly transported us to an era half a century ago as soon as we arrived. The props, hats, scarves — everything belonged to that specific period. As actors, it was effortless to immerse ourselves in our roles," Cui says.

In the series, the character of Ye, Chen's wife in the drama, is brought to life by Beijing native Zhao Xin, who was profoundly captivated by Ye's personality when delving into the character's background.

"I find this girl incredibly intriguing. In that era, how could there be such an intelligent and clearheaded young lady? She is remarkably perceptive and forthright," Zhao says.

Ye earned the endearing nickname "prophet" from the audience, due to the character's accurate prediction of the reinstatement of the college entrance exam. Zhao believes that Ye's popularity is attributed to the fact that contemporary young women exhibit a strong sense of independence, and they can connect with Ye on a personal level.

"I've learned valuable lessons from the character. She possesses a profound pursuit of ideals and approaches situations with a highly rational mindset," she says.