Aeras has always dreamt about other worlds for as long as he could remember. But how could a youth, who has seemingly spent all his life on a distant and isolated island, could imagine landscapes and people foreign to him? A chance encounter with pirates and an audacious boy named Yume, enables Aeras and his best friend Nebula to embark on a journey to fulfil his wish of exploring the outside world. However, unbeknownst to them, their adventure entails hardship, suffering and heartbreak. Aeras will learn about his origin and will forever be changed.