The Laughing Salesman Season 2 Episode 4 Old Face, Young Body 1991

Company President, Izumo Wakashi is 73 year old and feels his age, but he looks much younger. Moguro gives him special dumbbells for training which he must use with a special incantation to recover his youthful strength. However, it only works if he sticks to golf and does not pursue women. Wakashi ignores the warning and spends the night with a young woman, which does not effect his muscular body, but causes his face to decay rapidly into that of an old man.