While everyone is pursuing the summoned beast with supreme combat power, the protagonist awakens the E-class "lucky" summoned beast that is judged to be the most useless. His girlfriend betrayed him on the spot, and the whole school laughed at him. However, as the plot unfolds, the protagonist discovers that his "luck" is a concept-level causal weapon - picking up S-level skill books while walking, drawing cards will lead to legends, enemies will go crazy if they break through, and villains will be punished by God for their calculations. When a global crisis came and all the S-class strongmen were helpless, the protagonist relied on the strategy of "picking up for nothing" along the way to solve the problem easily.
