In order to pay off the debt, Yui draws a model for nude painters. An old painter who wants to polish Yui as a nude body heats up sensual sex play. The deadline for exhibiting at the upcoming Nichiga Exhibition. The editor-in-chief will try to open the flower sexually by committing yukata to catch a grand prize. The jealousy of old painters who do not know anything further draws out the armor of Yui.