Paul is a scientist who studied the infant Sanda in his laboratory. The infant escaped before any conclusions could be drawn about him, so they did not give it any afterthought until years later when a Green Gargantua is seen destroying ships and eating people. He helps the Japanese military to determine that the rampaging kaiju is in fact, a Gargantua, but due to its violent nature Paul has a hard time believing that it is the same Gargantua that he and his team had cared for. He eventually determines that there are in fact two Gargantuas, but he does not believe it has good intentions (if any intentions at all) until he sees the adult Sanda save the life of his assistant Akemi. He then aids the military in coming up with strategies to ward off or defeat the monsters, while advocating for Sanda's life. He begins to theorize, after seeing some of Sands and Gaira's cells, that Gaira is just some cells of Sanda's that spawned a new being. Eventually, The monsters begin to advance on a cluster of cities, and Paul allows Akemi to turn Sanda around. The two fight into the sea, and are presumably killed.