Tanaka Tetsuro is excited at getting a full scholarship at a new high school, far away from his family. What he does not know is that he will be the only boy in an all girl school, and that there is a girl head-over-heels in love with him, waiting for his arrival. But his special friendship with the very cute and dynamic Asuka also causes him to get into a lot of trouble with the powerful student council leadership, as they are at open war with Asuka and her five friends, a group of super amazon warriors called the Koi Koi Seven.
.hacku002Fu002FQuantum（日语：クワンタム,台湾翻译：创世纪传说：量子战役），是继2003年动画《.hacku002Fu002F黄昏的腕轮传说》和2006年动画《.hacku002Fu002FRoots》后的OVA动画，《.hacku002Fu002FLink》的2年后（2022 年）作为背景舞台，作品以全世界超过一千万个玩家参加的虚构线上游戏《The World R:X》为主轴，主角咲夜及远世、玛丽两名队友共同展开的冒险物语。
