Seiichi meets the extremely eccentric students of F-class and gets stuck playing the straightman before the class' old teacher, Beatrice, suggests mock battles so Seiichi can assess their abilities.
Besides, the one you were 
picking a fight with
Außerdem ist der, den du da
angepöbelt hast, dein neuer Lehrer!
Además, le estabas buscando
pelea a tu nuevo tutor.
Además, ibas a pelearte
con tu nuevo tutor.
Inoltre, quello con cui stavi attaccando briga
E você estava comprando briga