Ugaz co-authored Mitad monjes, mitad soldados in 2015, an investigative nonfiction work alleging abuse in a Peruvian Catholic organization. In response to her announcing a second book on the topic, she faced online harassment, death threats, and several defamation suits of which she was aquitted in January 2022. Despite her acquittal, Ugaz continued to be assaulted and more lawsuits were brought up against her by the ultra-conservative group Sodalicio de Vida Cristiana.