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'm just happy to be of service!
تسرّني الخدمة
Freut mich, dass ich helfen konnte.
Me alegro de serte útil.
Me alegro de serte útil.
Tant que ça t’a été utile.
Tu sais ce qu’il te reste à faire.
Sono felice di esserti stata utile!
Fico feliz em poder ajudar!
Всегда рада помочь!