King Duosi

King Duosi was the former governor of Tulong Cave during the Three Kingdoms era of China. He served under the Nanman King Meng Huo, and was a very close friend to the brother of Meng Huo, Meng You. King Duosi was very much well known amongst the nanman as the "Sage of Nanman". Duosi assisted the very outnumbered Meng Huo through his spring water tactic that he used on Zhuge Liang, such as the Tulong's poison waters. This tactic ultimately resisted Zhuge Liang for quite some time. However, through the help of Meng Jie, Zhuge Liang figured out the trick to the fountains.