The present invention provides an epitope peptide that is derived from KOC1 and that has cytotoxic T cell induction potency. The present invention also provides a polynucleotide that codes for the peptide, antigen-presenting cells that present the peptide and cytotoxic T cells that target the peptide, and a method for inducing the antigen-presenting cells or the cytotoxic T cells. The present invention also provides a composition and a pharmaceutical composition that include the peptide, etc. as active components. The present invention also provides a method for the treatment and/or prevention of cancer and/or the prevention of the postoperative recurrence of cancer, the method using the peptide, the polynucleotide, the antigen-presenting cells, and the cytotoxic T cells of the present invention or using the pharmaceutical composition of the present invention. The present invention also provides a method for inducing an immune response to cancer.
