A cartoon data generating system includes a receiving unit configured to receive a layer selection signal for selecting at least one layer from cartoon data including a cut generated from a combination of at least one layer including different stories and an effect application signal for applying a predetermined effect to the at least one selected layer; a determination unit configured to determine a layer satisfying an expansion condition among the at least one selected layer; and a controller configured to expand the layer satisfying the expansion condition to a predetermined size and generate an effect cut from a combination of the expanded layer to which the predetermined effect is applied and another layer.