Synopsis
Based on the erotic game by Alice Soft. In the late 21st century, humanity came under a brutal assault from aliens that appeared without warning through wormholes. With no means to resist, people could only brace for their end. Then, in a vast cave beneath Japan, an ultimate weapon able to create anything from imagination was unearthed, together with its young master Ryuusei, who lay in cryostasis. The aliens' indiscriminate attacks woke him, and he guided humanity to a decisive triumph. A year later, while the areas destroyed by the aliens were still under reconstruction, Ryuusei was appointed commander of the newly formed Defence Force of Earth, an organization built to battle space invaders. Yet he was the sole individual capable of using the 'imagination embodiment device'. If any harm came to him, catastrophe would engulf the world. So the Defence Force of Earth decided to enlist girls with latent ability to fight alongside him. Though they were hesitant at first, each had her own personal motives for standing with Ryuusei. Thus, the special unit 'Blade Briders' was established to defend Earth against the aliens, who have now returned.
