13-year-old Michael (Ludovico Girardello) is a teenager who is often bullied at school. He likes Stella (Noa Zatta), a beautiful girl in the same class, so he plucked up the courage to accept the invitation of the other party's Halloween costume party. He found a set of Superman costumes in a Chinese grocery store. He was originally happy to go to the party, but he was humiliated by bad kids. Michael ran home in the heavy rain, and found himself invisible the next morning. The sudden change surprised him, but he also got a lot of fun from it, such as teasing the children who bullied him, following Stella, etc., and of course, making jokes at the same time. His life began to change subtly, and he became friends with Stella by taking advantage of the opportunity of invisibility. At this time, Stella was kidnapped by a mysterious person...