The mask performance held in the expansive inland fields of Gyeongsangnam-do is known as “deulnoreum.” In Suyeong-dong, Suyeong-gu, Busan Metropolitan City, the locally inherited eulnoreum is called Suyeong Deulnoreum or Suyeong Yaryu (水營野遊). Traditionally, it coincided with the Sansinje (山神祭) ritual on the day of Daeboreum in the lunar calendar. During this event, villagers gathered at Choiyeong General’s shrine, praying for the prosperity and well-being of the village.