Punti-Hakka Clan Wars
Over time the newcomers adopted the term "Hakka" to refer to themselves, not least due to the migratory tendencies inherent in their own culture. However, because the term also covers Hakka speakers (in the same way that Punti covered several people speaking different tongues), and because the Han Chinese registered as Guest Families who migrated may not have been Hakka speakers, and because of intermarriages among Hakka and Punti members (which showed that relations between the two were very good at times), identification as Hakka was largely a matter of self-selection. Through studies of both Cantonese and Hakka genealogies, some Hakka and Punti people with the same surnames claim the same ancestors, although their descendants strongly identify with one group to the exclusion of the other.
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.