In the vast multiverse, the mad scientist Grandpa Rick travels through time and space with his unparalleled wisdom and unruly character. However, an unexpected experimental accident caused him to travel to the mysterious world of bad people in Jianghu. What he didn't expect was that his original brain development turned to zero, and his level turned out to be that of a primary school student. But his memory remains. As a result, a four-dimensional biological system suddenly appeared when he was dying. Mr. Rick couldn't accept that he was so smart and was replaced by this four-dimensional creature, but he had no choice but to reach an agreement with the four-dimensional creature to cooperate and coexist and restart his intelligence.
