In China 1644 a young man is castrated/dismembered against his will. However, he gains a somewhat defect super power. Much later he's chosen to escort two concubines on a long, adventurous journey to Beijing.

Tianya and his sister are ordered by General Feng Peichuan to embark on a treasure hunt to find the Golden Moon Gem to cure the plague in Heishui Town, but General Feng Peichuan has other motives for finding this treasure.