Kawada Michiyo (Kimura Yoshino) lives happily with her husband Daisuke (Kitamura Kazuki) and their three sons. But one day, their lively 4-year-old second son Yuhei (Yokoyama Ayumu) who loves sports, catches a cold and is brought to the hospital when his fever does not subside. Yuhei is diagnosed with a cancer called hepatoblastoma which occurs in 1 out of 1 million people. Michiyo decides to call it a “worm” after discussing with
