Taijitu seen in Tripilja culture in Ukraine, displayed in the Ukraine pavilion at the Expo 2010 in Shanghai, China. Also, the interlocking design is found in artifacts of the European Iron Age. While this design appears to become a standard ornamental motif in Iron-Age Celtic culture by the 3rd century BC, found on a wide variety of artifacts, it is not clear what symbolic value was attached to it. Unlike the Chinese symbol, the Celtic yin-yang lack the element of mutual penetration, and the two halves are not always portrayed in different colors. Comparable designs are also found in Etruscan art.
Yin-Yang! X-Change Alternative time at school with his friends Touya and Renji. In the game, Kaoru begins to have dizzy spells. After going to the school nurse—who's also famous for inventing new concoctions in the name of science—and accidentally using a vial of experimental medicine, Kaoru is shocked to wake up the next day to find that he's been transformed into a girl. Yin-Yang! X-Change Alternative Yin-Yang! X-Change Alternative is a Japanese erotic game produced by Crowd and distributed in English by Peach Princess. It is an offshoot of the popular "X-Change" series, but plot and storyline are entirely different and have no