Female teacher Yui is forced to care for her husband's elderly father, Old Nobu, at his family home. Captivated by Yui's beauty, Old Nobu leers at her, whispering eerie words: "Before I die, I want to hold a woman one last time..." Initially rejecting his advances, Yui gradually finds her heart stirred by Old Nobu's warmth and genuine affection, slowly becoming drawn to him. As their bond deepens, Yui's heart and body begin to respond to the old man. A complex, profound human relationship unfolds, transcending the boundaries of caregiver and patient.