Hikaru's "big brother" insei. Like Kaga, he has a dislike for Akira Toya because he can never defeat him and because of what he perceives as Akira's disdain for his opponents. He has once faced Sai in Internet Go using the nickname 'zelda.' He becomes a pro (at age 15) in the same year as Hikaru. He is also known to be very reckless and short-tempered, even punching former insei Mashiba in the face because the latter rattled his friend Isumi. Waya's birthday is August 12. He takes the pro exam 4 times before passing.