My small sampling of Kdramas informs my opinion that most directors instruct villains to overact, with the worst offenders being Japanese favorable characters i

My small sampling of Kdramas informs my opinion that most directors instruct villains to overact, with the worst offenders being Japanese favorable characters in historical periods of Japanese occupation of Korean peninsula ala Mr. Sunshine, Bridal Mask where when a character has a heel turn or heel-hero turn and changes acting style immediately.