In return, they were exempted from part of assignments imposed, such as cho (tributes) and zoyo (irregular corvee), as well as from military service, but it is thought that they were engaged in harder work than shinabe in terms of both contents and treatment.
その代替として調及び雑徭などの課役の一部が免除され、また兵役も免除されていたが、品部と比較すると、内容・待遇の両面において重労働に従事したと考えられている。