By Tomohiro Chiba, Hajime Yatate
The girlfriend of a Zaft soldier killed during an experiment, grief-stricken and enraged, plots revenge, while Blue Cosmos, a terrorist organization, is waging a war against Coordinators. All this makes Lowe and his crew's journey through space, in search of parts, a dangerous proposition.
Severity reflects intensity, not value — “central theme” means a warning is a core part of the book, not that the book is bad.