changing constantly

playing with fire / (by extension) playing with fire (putting oneself in a precarious situation) / (by extension) being unfaithful in a romance

to play with fire / (by extension) to play with fire (putting oneself in a precarious situation) / (by extension) to be unfaithful in a romance

(slang) lanky and unmuscular

(onomatopoeia) whistling of the wind, a flute, or flying by of a ghost, etc.

beard shadow

青髭: Bluebeard

fixture that blocks sunlight

daytime television drama

平日: weekday; the "say" radical (曰)