The Medicine of the Three Kingdoms Unified the World

After catching a cold and taking a pill, Song and Yuan traveled back to the troubled times of the Three Kingdoms in ancient times. Unexpectedly, this pill is actually a medical system that can treat all diseases. Just after traveling through time, he met Hua Tuo, a famous doctor from the Three Kingdoms. Not only did he learn medical skills from Dr. Hua, he also gained the little sister Hua Zheng. During the ensuing Yellow Turban Rebellion, Song and Yuan were captured and conscripted into the army. Fortunately, he was a highly skilled man, so he still relied on his medical skills to become very popular in the army. After curing a dying general, he became a talent sought after by several forces! But who am I helping?