Shoko Akase, playing Tatsu (Itsuki Okita), is asked by her son's friend Kenta to let him rest his head in her lap while she cleans his ears. Sensing his loneliness, she begins to empathize deeply with him. Kenta, who lost his mother's warmth after his parents' divorce during childhood, seeks comfort that Tatsu herself has long been missing due to years of solitude. Wanting to soothe him in any way she can, she gently presses her chest against his face and embraces him warmly. Even when he begins to desire more physically, she responds not out of obligation or self-preservation, but purely out of compassion. The story unfolds as their intimate bond gradually deepens.