Miyabi's friends and teachers work to protect her from the corrupt teachers' union whose pressure on Mr. Saitou over his unprofessional relationship drove his student lover to suicide.
...attacked a person with a knife...
بالاعتداءِ على شخص بسكِّين ..
dass diese Schülerin
jemanden angegriffen hat?
Não é de se espantar 
que apunhalem alguém.