The manga is out of print in English. The only way to experience the series at all is through raws. Furthermore, many collectors buy the Japanese volume (to support the author) but download the raw to read it (to avoid cracking the spine of their collector's item).
Akita, impressed by her strength, asks Setsuna to teach him how to fight. However, Setsuna reveals herself to be a fanatic obsessed with the purity of violence, declaring it the only true rule of the world. bouryoku banzai raw manga