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.
Nobody saw me.
لم يرني أحد
Niemand erwischte mich.
Nadie me vio.
No me vio nadie.
Personne ne m’a vue faire.
Nessuno mi aveva scoperta.
Ninguém me viu.
Меня никто не увидел.