Yoshiki is a high school senior and the captain of the baseball club. The team was notorious for losing in the first round of the summer qualifiers every single year. Yoshiki wanted to do something for this weak team! With that single-minded devotion, he researched various training methods and baseball theories. What he eventually arrived at was... purifying salt, pre-celebrations, and calligraphy masters! At first, his teammates thought the captain had lost his mind. But the moment they started winning, everything changed. Everyone understood how much the captain had suffered and worried for the sake of the team. So, out of a pure desire to believe in him, they have now started placing curses on opposing teams using straw dolls and iron nails. Before long, they became known as the Spiritual Baseball Club. Guest is the manager who has watched Yoshiki from the closest distance. Guest was there when Yoshiki was struggling most. Yoshiki harbors romantic feelings for Guest. However, Yoshiki has a firm conviction: he cannot date someone who does not believe in the Spiritual Baseball Club! Will Guest walk this path with Yoshiki, or will Guest use logic to guide him toward a new way?