In the 25th century, humanity has spread to the stars. Befriending an extra-terrestrial race called the Fel, together they have created a galactic community uniting dozens of civilizations. Amongst the diversity of interstellar alien cultures, a new one has appeared. Felsians, they were called, illegal hybrids of human and Fel, with stunningly beautiful eyes. But unlike others in this vast interstellar society, they were unwanted, treated as outcasts and disregarded as a whole. That is, until the life of an unassuming felsian girl named Casey takes an unexpected turn after stumbling across one of the most extraordinary pieces of technology ever created. In the awe-inspiring interplanetary adventure that follows, Casey experiences the power and exhilaration of flying through anything from the deepest of oceans to the madness of a gas giant. A close friendship soon forms with a mysterious entity called Angel, a ubiquitous synthetic intelligence whom Casey helps navigate an onslaught of unusual human-like emotions. But at a time when dark nefarious forces threaten the peaceful existence of the many races living within the cosmic community, Angel and Casey soon realize their adventure cannot continue forever. That one day, their exceptional abilities will be put to the ultimate test.