Hoshimi Sudou’s reputation at work is legendary. But it isn’t tales of his astounding performance as a scientist that has everyone talking: rather, his affairs with his female coworkers fill the daily office gossip. Talk of his exploits and prowess have made him a target for many aspiring young ladies, but no one has yet reformed this contemporary Don Juan. However, Sudoku is not the heart breaking Romeo that he has been made out to be. His misanthropic personality and anti-social behavior are really defense mechanisms to hide his sensitive nature. And while his scorn for the world around him seems to attract the ladies, his exploits are grossly exaggerated. When his coworker, Hirokawa, stumbles across Sudou playing in a street corner jazz band, he begins to see the sensitive side that Sudou hides at work. And after a night of unforeseen passion, the pair begin to develop a complicated relationship that unfolds into a stirring drama between their professional and private lives.