You are an elite TSF pilot and have just been transferred to Yokohama Base to train a squad consisting of four young girls. The four girls in your new formed squad are, Mia, Elise, Yumi and Rika. How to train your girls is totally up to you. summary: An alternate reality where Earth has been invaded by the BETA, a relentless and numerous alien species that threatens the survival of humanity. The war against the BETA has been ongoing for several decades, with humanity struggling to hold its ground. Humanity is on the brink of extinction due to an ongoing war with a mysterious and deadly alien species known as the BETA (Beings of Extra Terrestrial origin which are Adversary of human race).

It's has been 50 brutal years since the Human-Elven started with the Human Kingdom of Liona. On their breaking point and struggling to gain a meaningful victory against the Elven Kingdom and their Elite Archers and Swordmen.