Provided is a surgical system that can realize simplification of a structure of a storage case, miniaturization, and cost reduction.The surgical system includes an overtube, a sheathing tube, a syringe, a tube, an inner needle, and a storage case that has individual storage parts for individually storing the overtube, the sheathing tube, the syringe, the tube, and the inner needle, respectively. The storage case fixes a first instrument, which is any one of the overtube, the sheathing tube, the syringe, the tube, or the inner needle, to the individual storage part corresponding to the first instrument by using at least one of second instruments which are other instruments stored in the individual storage parts.