One day, the Earth was assaulted by a space pirate, Orbus. He aimed at Planet Energy, the life energy of the Earth. If several Release Point...

Mankind has traveled to the stars and come across various alien civilizations, now long dead. Upon discovering the archaeological remains of...

Makoto Niwa meticulously tallies the amount of positive and negative youthful experiences he engages in as if to grade his own life. When hi...

A hundred years after Earth is invaded by aliens, the last remnants of the human race dwell in underwater "Aqua Bases." A team of five cyber...