The present invention provides a paper quality improver for papermaking, for improving bulk value, brightness, and opacity of the pulp sheet. Further, the present invention provides a dry efficiency improver. A compound is used as the paper quality improver for papermaking, wherein the compound has less than 4% of lyotropic degree measured by a specific method and the compound satisfies at least two selected from (i) standard improved bulky value of not less than 0.02 g/cm.sup.3, (ii) standard improved brightness of not less than 0.5 point and (iii) standard improved opacity of not less than 0.5 point. The compound is added internally into pulp slurry before or in papermaking step.