In 1997, the world was being consumed by the threat of AIDS. Hidden in the shadows of this era, a couple joins a monitoring program to protect their status as germ-free individuals while nurturing their love. Amid their quiet daily lives, their feelings gradually deepen. Kiyomi's body is slowly enveloped by rising waves of pleasure, growing hot and flushed. As the boundaries between emotion and physical sensation blur, their bond grows ever stronger. Their warmth and purity become a gentle light lingering at the end of this era.