Every Friday night, just as the workweek winds down, two voices cut through the urban noise. One belongs to Jane Su, a sharp-tongued columnist with a flair for life advice; the other to Mika Horii, who makes a living doing freelance narration and emceeing, and who recently had a star turn onstage in a production of “Phaedra.” From a dimly lit booth inside Tokyo’s TBS Broadcasting Center, the pair

