In the future, human consciousness is eroded by a mysterious virus, and civilization faces collapse. An abnormality occurs in the core code of Cancan's robot friend Bobo, revealing a future crisis. In order to save mankind, Bobo takes Cancan through time and space to find the truth. They discovered that the virus originated from the unconscious scribblings of a child in ancient times. This graffiti eventually evolved into futuristic technology that can control minds. When the AI enforcers hunted them down, Cancan used graffiti thinking to crack the enforcers' code. In the end, Bobo absorbed the virus with his own consciousness container, and Cancan purified it with his naughty mind. The mystery of the universe is that the most chaotic creation of mankind requires the most primitive childlike innocence to understand and redeem it.