Wojito had video evidence of Mizkif's abuse toward Emiru. After originally seeing it Wojito gave it to Emiru and hightailed it out of there as fast as he could. She's kept it in her back pocket all these months. That's why Maya called her the goat, because Emiru confided in her that eventually she would reveal this video and it would backup Maya when she eventually tells her own story though she doesn't have similar evidence.