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.
Waiting for me... to confess?
تنتظر... اعترافي؟
Du wartest auf mein Geständnis …?
¿Esperando a que confiese?
¿Esperando a que cante?
Que je crache le morceau ?
À propos de quoi ?
Stai aspettando...
Esperando que eu... confesse?
Расскажу? Что расскажу?