This episode reveals an important detail about the student who allegedly took his own life before the events of the current case, but the information isn't substantial enough to draw any meaningful conclusions just yet. That said, two things stood out to me as rather questionable: I wouldn't share the first one because it might sound as a spoiler but the second one is Akao, I couldn't understand why no one thought to question Akao from the very beginning. It felt like the proverbial elephant in the room, something so obvious that everyone simply ignored it, whether out of complacency or because the story chose to overlook it. Despite these concerns, the mystery still hasn't revealed enough clues to make me confidently narrow down the list of suspects so the case remains difficult to solve at this point.