A stack of sheets comprising: first sheet bodies each formed by folding a sheet, and having a first piece, a second piece and a third piece between both ends of the sheet body, the first piece and the third piece being folded in opposite directions to each other with respect to the second piece, second sheet bodies each formed by folding a sheet, and having a fourth piece and a fifth piece between both ends of the sheet body, the first sheet bodies and the second sheet bodies being alternately stacked one on another in such a manner that the fourth piece and the fifth piece of each of the second sheet bodies are inserted between the second piece and the third piece of a first sheet body adjacent to the second sheet body on one side in a stacking direction and between the first piece and the second piece of a first sheet body which is adjacent to the second sheet body on the other side in the stacking direction, respectively, wherein: an auxiliary piece (133b, 142b) is formed by folding an end of the piece of each of the first and second sheet bodies (130, 140) which lies on one of the opposite sides in the stacking direction, and wherein wet tissues are used as the sheets; characterized in that: the auxiliary pieces (133b,142b) of the sheet bodies (130,140) adjacent in the stacking direction do not overlap one another in the stacking direction. first sheet bodies each formed by folding a sheet, and having a first piece, a second piece and a third piece between both ends of the sheet body, the first piece and the third piece being folded in opposite directions to each other with respect to the second piece, second sheet bodies each formed by folding a sheet, and having a fourth piece and a fifth piece between both ends of the sheet body, the first sheet bodies and the second sheet bodies being alternately stacked one on another in such a manner that the fourth piece and the fifth piece of each of the second sheet bodies are inserted between the second piece and the third piece of a first sheet body adjacent to the second sheet body on one side in a stacking direction and between the first piece and the second piece of a first sheet body which is adjacent to the second sheet body on the other side in the stacking direction, respectively, wherein: an auxiliary piece (133b, 142b) is formed by folding an end of the piece of each of the first and second sheet bodies (130, 140) which lies on one of the opposite sides in the stacking direction, and wherein wet tissues are used as the sheets; characterized in that: the auxiliary pieces (133b,142b) of the sheet bodies (130,140) adjacent in the stacking direction do not overlap one another in the stacking direction. an auxiliary piece (133b, 142b) is formed by folding an end of the piece of each of the first and second sheet bodies (130, 140) which lies on one of the opposite sides in the stacking direction, and wherein wet tissues are used as the sheets; characterized in that: the auxiliary pieces (133b,142b) of the sheet bodies (130,140) adjacent in the stacking direction do not overlap one another in the stacking direction. the auxiliary pieces (133b,142b) of the sheet bodies (130,140) adjacent in the stacking direction do not overlap one another in the stacking direction.