The series is set on the spiral-shaped island nation of Nejigajima and follows two 'Bokyabots,' Hebot and the Yurui Prince Nejiru, as they gather various 'Bokya Neji' screws across its landscape. When the Bokyabots attach these screws to their heads, they can enter 'Bokya Battles,' contests in which participants craft and deliver the finest jokes for the audience.