Shouzou and Ine Saitou, a long-married couple basking in enduring love, wake up one day to a surprising transformation into their youthful selves. With their rejuvenated appearances, the couple navigate life's intricacies while preserving their unwavering bond in Jiisan Baasan Wakagaeru. Witness their journey as they engage with family, carry out their routines, and challenge the assumptions of the younger generation.