A boy who died of depression unexpectedly transmigrated to another world and became a girl. Already depressed, the boy grew even more so, but General Cang Yu of the [Luofu] took a liking to him and made him her disciple. The boy had very little talent and was ultimately unable to pursue the martial path. Unwilling to abandon him, Cang Yu had him study medicine instead. A thousand years later, Cang Yu is dead, and the successor general is nearing retirement, yet the boy still looks like the same young girl he was back then.