BOC AU: Elder, But Younger Sister
A83/100Web serial by CasualFarmer
Once, Shen Bu destroyed everything his father had ever worked for — burning the new home to ashes, consuming his mother's cultivation, and slaying the unborn daughter within her. Three hundred years later, Shen Yu is still searching for anything to save that daughter's life, crippled and hidden in a realm where time is slowed to preserve her. No progress has been made. Feeling the weight of his quest, he returns to the city of his birth to drown his sorrows — and meets a boy who finally gives him hope. Waking up in the body of an eight-year-old kid dying of plague in a xianxia setting was not anyone's idea of a good time. The new inhabitant lacks a cheat or a system, but a chance meeting with an unremarkable middle-aged man who likes talking about medicine may prove more valuable than it seems.