Yui Hatano is a passionate yet inexperienced woman eager to grow in love. To deepen her understanding of romance, she orders a male love doll designed to provide women with detailed dating instruction. He patiently teaches her everything—from how to confess feelings and initiate a kiss, to giving rimjobs and mastering the techniques that bring men pleasure. As days pass, Yui finds herself increasingly drawn into their intimate bond. When the love doll's purpose comes to an end, he delivers "true love" to Yui with a final creampie. A heartfelt, emotional adult love story unfolds—where love and passion collide.