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 think you'll just have to face it yourself.
أعتقد أنّه سيتعيّن عليكِ
مواجهة الأمر بنفسك
Du musst dich der Wahrheit stellen.
Tienes que afrontarlo tú.
Tienes que afrontarlo tú.
C’est à toi de faire face.
È una cosa che devi affrontare tu.
Acho que você terá que
enfrentar isso sozinha.
Ты должна найти ответ сама.