Yui Hatano, a single career woman deeply focused on her job, accidentally picks up a man and begins keeping him in her room like a 'pet'. Drawn to his gentle and warm nature, she gradually lets her guard down. Soon, she opens her body to him completely—sharing passionate kisses, cunnilingus, and intimate lovemaking that heals her heart like a true lover. The two enjoy a blissful life together, yet the man never forgets his role as her 'pet'. Wishing only for Yui's happiness, he ultimately brings her to climax with fiercely intense sex.