Shinpei deepens the unity of his friends at the gymnasium, but suddenly rushes into the seventh loop after being shot by the "shadow". Heine noticed that the starting point gradually shifted as Shinpei looped, and modified the strategy to eliminate Shinpei altogether. That night, Shinpei and his friends gather again at Nittogashima Elementary and Junior High School to defeat the hornbeam. A hornbeam that has brought many "shadows". The total war between "Shadow" and Shinpei begins.