Tempted by a beautiful day, piano teacher Toshiyuki decides to play the piano with an open window. Before he realises it, an intruder enters through the window without permission. The intruder turns out the be a talented surgeon, Mashiba, who works in a nearby university hospital. This surgeon starts to pursue Toshiyuki non-stop! "You're more beautiful than the music you play," he says, stunning Toshiyuki. Feeling completely harassed, will Toshiyuki be able to get away from his pursuer?