Meet the irascible Aiko Sato, one of Japan’s most lauded authors. Words are her game and she does not mince them. Among her many award-winning books is “Battle and Sunset,” vividly portraying her struggles with her “useless” husband. It led to the Naoki Prize in 1969, as well as her second divorce. But that’s all in the past. Today, Aiko is 90 years old and living in relatively peaceful retirement… until a persistent editor in desperate need of career rejuvenation comes calling. Convinced that spicy words of wisdom from a nonagenarian are just what the public needs, he convinces her to un-retire. Aiko begins penning a biweekly column with droll, engaging social critiques blending Japan’s past with its present. The follow-up book is a smash, selling over 1.6 million copies across generations and sealing an unlikely friendship between writer and editor. With an extraordinarily deft and understated performance by 90-year-old actress Mitsuko Kusabue as Aiko (who’s now 100 and still publishing), this dramedy is as hilarious as it is life-affirming.