Turns out the one spreading the rumors was Hashimoto, who did so at the behest of Sakayanagi. Shortly thereafter, Sakayanagi appears before Class C and she informs them she has evidence regarding the rumors about Ichinose.
There's nothing wrong with it, in and of itself.
لا مشكلة به بالتحديد
Daran selbst ist nichts verwerflich.
Ce système en soi n’a rien d’illégal.
Di per sé, non c'è niente di male 
in ciò che avete fatto.
Não há nada de errado com isso, por si só.
Конечно нет,
ведь это даже не нарушение.