In the context of a package for sealing an infusion set therewithin, the present invention causes a plurality of illustrations in which elements and colors thereof which appear in a story, verse, or lyric of a song or nursery rhyme are depicted in images in order of appearance therein, the respective images being displayed on a surface of the package in order from frontmost to backmost in mutually offset and partially overlapping fashion, such that it is possible to extremely naturally and without difficulty grasp the colors and the order thereof, i.e., the order of administration, as a result of which it is possible to effectively prevent misidentification of administration procedure during use of the infusion set. Furthermore, by further causing numbers indicating order of administration to be displayed at the respective colored illustrations, the order of use of the respective sets of infusions in the infusion set can be linked to colors and definitively recognized, making it possible to greatly reduce the likelihood of occurrence of human error.
