This envy is the key to the entire Danganronpa plot. Natsumi Kuzuryu (the younger sister of Fuyuhiko Kuzuryu) and Sato (a friend of Mahiru Koizumi) were Reserve Course students who attended Hope's Peak to be close to their Main Course siblings. Their feud over status and bullying led to a double murder—the "Twilight Syndrome" case.
A: No. The anime focuses on Class 77 and the Future Foundation. Haruki remains a data-mined/art book exclusive. haruki ibuki
But that is precisely why he is so compelling. This envy is the key to the entire Danganronpa plot