Speaking of "Left Ear", perhaps most people can only think of the film version directed by Su Youpeng, starring Chen Duling, Ou Hao, Yang Yang, and Ma Sichun in 2015.
As Su Youpeng's first seat plus Chen Duling's debut, this movie has won a total of 4The box office of 8.5 billion, in 15 years, this box office result is already quite good.
In the same year that the movie was released, the TV series version of "Left Ear" was also filmed, directed by Chen Huiling, also by Rao Xueman, and the starring team was also replaced by another batch of newcomers, consisting of Mi Mi, Zheng Kai, Huang Rende, Ma Yinyin, Duan Bowen, Xu Lingyue, Zhou You, Zhu Yan Manzi, Liu Yujia and other leading actors, if there is anything other than that people will be different, it is probably that the TV series will tell the details of the story in more detail than the movie, making up for many stories in the movie version. 
But I don't know why, this TV series was shelved for eight years, and it was not airborne until the 15th that it landed on major *** platforms. Putting aside the plot first, the filming techniques eight years ago will definitely be very different from today's TV series production, and he was an actor who had just debuted at that time, even Rao Xueman, who was strict with his requirements, didn't know what kind of plot development would be presented to the audience.
Specifically, probably only the audience who has seen it can speak.