As we know this ugly looking demon https://kimetsu-no-yaiba.fandom.com/wiki/Hand_Demon is captured by Urokodaki during the Edo period. Later this demon grows hatred toward Urokodaki and has killed every Urokodaki's disciples during final selection, even almost kills Tanjiro. Urokodaki seems so happy when he sees Tanjiro comeback home safely unlike his other death disciples.
But what about the watter pillar Giyu Tomioka? As far as I know he's also the disciple of Urokodaki (same breath style). The hand demon says that Sabito and Makomo (death people who trained Tanjiro during training) are the strongest among all, not Giyu. Did Giyu meet and survive the hand demon or was he just lucky to not encounter this powerful demon during selection?