Setsuko Kawashima (Shinobu Terajima) works an unfulfilling job at a Tokyo office. She stores candy given to her by a coworker in her desk and lives in a tiny, unkempt apartment. One day, her niece Mika Ogawa (Shiori Kutsuna) tells her to take an English class. The class is given at a karaoke like establishment and her English teacher is John. John likes to hug and gives Setsuko an enthusiastic welcome. Setsuko then takes up the name Lucy for her English class. Soon, Setsuko travels to America in search of John, her niece and for meaning in her life.