Nobuaki
Nobuaki is best known for being genuinely one of the good ones—he's the type who actually tries to help people rather than look out for himself. What sets him apart is that he was the first to seriously attempt ending the game itself, rather than just surviving it.
Fun bit of trivia: he shares a name with the author of Ousama Game, which fans have noted is a neat coincidence.
Content compiled by AnimeList.moe from publicly available sources.
