Hakka people
The Hakka (), sometimes Hakka Han, are Han Chinese people whose ancestral homes are chiefly in the Hakka-speaking provincial areas of Guangdong, Fujian, Jiangxi, Guangxi, Sichuan, Hunan, Zhejiang, Hainan and Guizhou. The Chinese characters for "Hakka" () literally mean "guest families". Unlike other Han Chinese groups, the Hakkas are not named after a geographical region, e.g. a province, county or city, in China.
Kasha (folklore)
Kasha literally means “burning cart” or “fiery chariot”. During Japan’s middle ages and early modern era, Kasha were depicted as a fiery chariot who took the dead away to hell, and were depicted as such in Buddhist writings, such as rokudo-e.  Kasha also appeared in Buddhist paintings of the era, notably "jigoku-zōshi" (Buddhist ‘hellscapes’, paintings depicting the horrors of hell), where they were depicted as flaming carts pulled by demons or oni. The tale of the kasha was used by the Buddhist leadership to persuade the populace to avoid sin.