Yin Yang Yo! two rabbit twins named Yin (Stephanie Morgenstern) and Yang (Scott McCord) that train under Master Yo, a grumpy old panda who is eventually revealed to be their biological father. They learn the sacred art of Woo Foo, a special type of martial arts that involves both might and magic. They must work together to save the world from evil villains and forces that want to destroy, corrupt, or take it over. However, through all these adventures, Yin and Yang still portray stereotypical siblings; belligerently antagonistic but still ultimately caring about each other and working together when needed. During the first
Yin and yang < *"ʔəm" compares with Burmese "ʔum" "overcast; cloudy", Adi "muk-jum" "shade", and Lepcha "so'yǔm" "shade"; and is probably cognate with Chinese "àn" < *"ʔə̂mʔ" "dim; gloomy" and "qīn" < *"khəm" "blanket" "Yang" < *"laŋ" compares with Lepcha "a-lóŋ" "reflecting light", Burmese "laŋ" "be bright" and "ə-laŋ" "light"; and is perhaps cognate with Chinese "chāng" < *"k-hlaŋ" "prosperous; bright"; "bǐng" < *"braŋʔ" "bright"; "liàng" < "*raŋh" "(pale) light"; "lǎng" < "raŋʔ" "brilliant light"; "míng" < "mraŋ" "bright, become light, enlighten". Schuessler surmises that those items either are areal words (cf. Tai "plaŋ" "bright") or belong to an Austroasiatic word family (cf.