19 Days is a Chinese web comic about the everyday life of two high school boys, Jian Yi and Zhan Zheng Xi. The story follows their relationship as they go through their teenage years, from first meeting to becoming best friends. Along the way they experience love, friendship, and all the other ups and downs that come with growing up. As they learn more about each other and themselves, their bond grows stronger, ultimately leading them to discover what true friendship really means.