Neo Arcadia - Yami ni Saku NijiNeo Arcadia ~Yami ni Saku Niji~; Neo Arcadia; Neo Arcadia - Yami ni Saku Niji; Neo Arcadia ~Dark Blooming Rainbow~; ネオアルカディア ～闇に咲く虹～; 新阿爾卡迪亞-命運之戀 綻放於暗夜裡的彩虹

Once upon a time, the land was engulfed in complete darkness. The King of Light, who lived in heaven, wanted to create a nation of light on the land. He sent out his royal son, Rain of the Rainbow, to the King of Darkness, Zebb. The two instantly fell in love and did the opposite of what the King of Light wanted: they began living happily in the land of darkness. Suddenly, Rain goes missing one day...?!