Genei wo Kakeru Taiyou: Koborechiru wa Unmei no Suna  

Il Sole Penetra le Illusioni: Scattered and Spilled Sand of Fate, The Sun Penetrates the Illusions: Scattered and Spilled Sand of Fate, 幻影ヲ駆ケル太陽 〜こぼれ落ちるは運命の砂〜

Prequel to the anime series, focusing on Akaris mother Hinata Taiyou.(Source: Wikipedia)This series is on hiatus.