Every day, Masako brings a bento to school for lunch. Inside is one musubi (a rice ball) covered with nori (seaweed). She always tries to guess what kind of filling is inside. One day, her musubi turns into a tiny sumo wrestler. But when she tries to show her friend, Kaylie, all she sees is rice and nori. Did Masako just imagine it? Find out in Masako's Bento Lunchbox Surprise, a colorful picture book for children age 4 - 8. Learn about Japanese food and culture as Masako and friends play with their food. Includes a glossary.