During a LOST JUDGMENT stream, Subaru Oozora reviewed a bullying video filmed 13 years ago at Kurokawa Academy. The footage dated September 17, 2008, showed not only the 17-year-old victim but also current case collaborators 'Kawaishinya' and 'Mamiya Yui,' leading her to realize that the person Kuwana (Red Knife) had been searching for might also be visible in the video.