[The more they learn about the elusive Wammy's House and they way they raised their genius orphans, the less comforting it all seems. Lazarus is disquieted to think that his one-time goal, back before they knew more, was to work toward recreating something like it.

He had the best of intentions, but perhaps Watari did, too.]

So... that means you don't know anything about Beyond Birthday? He was Numbered once, one Ban Ueno. You probably wouldn't have met him, the timing's wrong, but... he was one of the first successors, and his legacy is that he went crazy and became a serial killer. It's probably good that he lost his echoes, and I doubt that someone like that could have been your predecessor.