Rui Kamishiro is the stage director of Wonderlands x Showtime. He likes tinkering and inventing new things, and dislikes vegetables. As a child, his ideas for plays were always rejected by his classmates because they were too dangerous. He and Tsukasa are referred to as the “Weirdo One-Two Finish” at school because of their shared eccentric traits and Rui’s tendency to cause mischief.