Schoolteacher Sun

Schoolteacher Sun (Sūn xuéjiù 孫學究) is a Sanguo zhi pinghua-exclusive fictional character. He serves a similar purpose as Zhuangzhi / the Saint Hermit from Romance of the Three Kingdoms, which is giving a sacred book to Yellow Turban leader Zhang Jue.

Biography
Sun lived at the foot of Mountain Tai. He was the second son of Old Master Sun (Sūn tàigōng 孫太公) and an unnamed mother. The elder brother was to take care of the farm, while younger Sun was to become a schoolteacher (xuéjiù 學究). Schoolteacher Sun also had an unnamed wife.

One day, all of a sudden, schoolteacher Sun contracted leprosy: his hair fell out and his body never stopped oozing pus and blood. The illness also caused him to stink, and the stench offended his parents, so they built him a thatched hut over a hundred paces away from the farm. For several months schoolteacher Sun's wife gave him food, but at one point she could no longer bear looking at him and she always covered her mouth and nose while near him.

Schoolteacher Sun lamented the lack of contact with his family and wondered what the point was of living even a day longer. He decided to find a place to die.