Mash shows off the results of his rigorous training to his eldest son, Doum, who is the last wall standing in his way!! Mash's strength, which has learned how to understand and control the body's functions, has surpassed the level of muscle!! , unleashes its true power in response to its strength!! As the "eclipse" approaches, when the power of the innocent Fuchinomoto reaches its maximum, what will happen in the decisive battle where the ultimate and the ultimate collide!?