Naoko Noda, who works in a trading company, is called “anego” by her younger co-workers. What is “anego”? It means “older sister,” but in this case it is given as a nickname to Naoko because she is like a big sister to her coworkers, who depend on her to give them advice about everything. This drama, based on a popular novel, depicts realistically how Naoko lives her everyday life, including her love life, the problems she faces, and her uneasiness about the future.  In this drama, the main character, who is a 32-year old single woman working at a prestigious trading company, suddenly finds herself as one of the elders at the office, being a big sister to her younger co-workers. From the outside, it seems like she is a happy and successful businesswoman, but inside she is insecure and worried about her future. This drama, through the main character, portrays the everyday life of working women realistically; what they are really thinking, the problems they face, and how they do their best to survive in this world.