the Triassic period

陰陽道: a traditional body of Japanese esoteric cosmology; a mixture of natural sciences and occultism, based on the Chinese philosophies of Wu Xing and Yin and Yang.

The katakana syllable ピョ (pyo). Its equivalent in hiragana is ぴょ (pyo).

a high school (upper secondary school) with a large portion of graduates entering elite universities; a prep school