Once aboard the space station, the students and teaching staff on the Liebe Delta were like any other school, normal and concerned with their own affairs and classes. They even had a vacation period, known as the "Dive Break", when the space station ventured near the Geduld for system maintenance. Out of about 1000+ students, about 500 stayed for the break. Unknown to all, the space station, in the middle of the routine dive considered so regular that it has been entrusted to the elite "Zwei" cadet class, was sabotaged and the majority of the staff gassed and rendered unconscious, free falling into the depths of the Geduld Sea, where the resulting gravity pressures would crush the station and kill all aboard. The remaining adults, all instructors, sacrificed their lives in an act that they believed would save the majority of students on board. When their heroic actions proved unsuccessful and the Liebe Delta hung on the verge of collapsing, a mysterious ship named RYVIUS, hidden within the Liebe Delta activated itself and surfaced from the Geduld Sea. There were a total of 515 personnel on board the Liebe Delta at the beginning of the dive, of whom a total of 486 were successfully evacuated, meaning that a total of 29 people were killed in the sabotaged dive. 8 were instructors, 12 were the gassed staff who were later executed by the 2 saboteurs, and 9 students. The average age of the Ryvius crew is 16, so the story, despite its space-age setting, is more of a coming-of-age tale than anything else.