It's not just acting, but also experiencing growth with the character. After filming for so long, Cheng Yi felt he had changed. In his teens and twenties, Cheng Yi was particularly lively, with little to worry about, and he only saw the surface of things. It wasn't until he truly entered society and started working that he realized his initial immaturity. With increasing experience, he gradually became more mature, and the lack of concentration he had always wanted to overcome was naturally reso