Eru, a member of the school's book club and an avid lover of romance novels, has a strong interest in sex and has recently started sugar dating with only three partners so far, making her still quite inexperienced. The story quickly progresses as her petite body is thoroughly enjoyed and she is inevitably filled with creampie. Before her excitement fades, they move on to the second round, ultimately witnessing her usual habit of masturbating alone at home.