I haven't come across a Chinese novel that is clearly centered around the phrase 'you have guts'. Chinese novels cover a wide range of themes, from love and family to war and adventure. While courage is a common trait in many novels, there may not be one that is so simply named or themed as 'you have guts'.
Guts is purely fictional. It's a concept or character that exists within the realm of imagination and creative storytelling rather than being based on reality.
I'm not sure what you mean by'retarded comic'. Comics can have various styles and themes, but I haven't come across a category specifically called that.
The reason why " Celebrating Years " was considered mentally retarded by some viewers was probably because some of the plots and characters 'performances were considered to lack wisdom and rationality. Some people thought that the difficulties in the drama were always easily solved by the protagonist. The female characters were too emotional to pursue and marry the protagonist, while the powerful opponents were crushed by the protagonist. In addition, some people thought that the image of the prince in the play showed some unreasonable behavior and decisions in the development of the plot. However, these opinions only represented the views of a portion of the audience. The overall ratings of " Celebrating Years " on Douban and other rating platforms were good, and many viewers gave positive comments about the plot and characters.