Shuriken School follows the extraordinary adventures of a 10-year-old hero Eizan Kaburagi and his friends during their first year at an under-funded ninja school. Lessons take on a new dimension, as kids are shown how to melt into the walls, disappear into a cloud of smoke and fly over rooftops! Teaching methods are unorthodox and absurd things can and do happen. An action comedy about friendship, learning skills and how to surpass oneself.
The students are busy cleaning, tidying and polishing the school in preparation for a visit from Shuriken's alumni. While students and staff solemnly wait at the Main Entrance an old man appears, leaning on his cane.