The name Hiroshi Manabe identifies a Japanese illustrator and animator (1932–2000) celebrated for his independent animation and illustration work, co-founding the Animation Sannin no Kai, and futurist-themed artistry. No character named Hiroshi Manabe exists in the anime or visual novel Shin Ruriiro no Yuki. That series centers on a protagonist named Hiroshi, alternatively referenced as Hiroshi Mokabe, a science-focused student who discovers the supernatural entity Ruri. This character remains entirely separate from the historical Hiroshi Manabe figure.