Etymology and distribution of ピアス.

Piasu* 【ピアス】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Aichi-ken Gamagoori-shi , Ehime-ken , Kumamoto-ken . Terrain . From the shrine and the shrine. Aichi-ken Gamagoori-shi Distributed in Toyooka Town. Ishikawa-ken Kanazawa-shi Marunouchi was in the Edo era at the Kaga clan in the Clan office.

※ Later Han series . In Wakayama-ken · Mie-ken southern part (formerly Kii), it is said to be the descendant of the late Han emperor.