Though, Otsuka does mention that if a work is popular (such as Demon Slayer), there is a “ripple effect” where voice actors will be booked for more events and other series, which helps the voice actors rise in the rankings as well.
The voice actor behind Tanjiro’s master Sakonji Urokodaki , the 66-year old Hochu Otsuka, appeared on the Fuji TV variety show Sono Neta, Neta ni Shite Ii Desu Ka? on December 31 and discussed the phenomenon that is the Demon Slayer: Kimetsu no Yaiba franchise and how much a voice actor makes from being in a popular work.
Otsuka explains that payment to a voice actor is fixed before recording has even started and that each voice actor is paid based on their “rank” in the industry.