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.
I'll be taking my leave.
سأنصرف
Lassen wir die Sache ruhen.
Marchémonos.
Marchémonos.
Nous allons vous laisser.
Andiamocene.
Vou me despedir.
До свидания.