Aoi Umi no Tristia: Hontou no Takaramono

An ocean city, Tristia. Tristia used to be prospering playing an important role of the maritime trade, and it was as beautiful as to be praised as "marine jewelry". However, that was a long time ago. The attack of the dragons deprived the city of their original brightness. The people in Tristia worked hard to reconstruct their city, but...