Female performers are assigned to play male roles to showcase their vulnerability.

While some people suggest it's just a gimmick to assign male roles to female performers, Taiwan writer Yang Chao stands behind Lam's decision because females are able to directly express their vulnerability.

For example, the two actresses who play the emperor Cao Cao and legendary doctor Hua Tuo present the most graceful, breathtaking arm wrestling. The movements are like dance, pulling, hugging and turning over on the table. The dialogue is also a wrestling contest, with Cao struggling between killing Hua and breaking down her defenses to love and care for a friend.

"It's difficult for men to bare their emotions deep in their hearts. It will look awkward if the scene is played by two men," Yang remarks.

Lam says the series of history lessons invites the audience to reflect on the challenges faced by any generation.

"The process of growing up is prolonged nowadays, with modern society's fast tempo pushing people going forward and leaving little time for them to learn about themselves," Lam says.

"With well-developed self-knowledge, you will establish your own definition of success so that you won't be bothered by not meeting other's expectations, which is an important sign of maturity."