Top 5 in Top 10 smartest characters in anime Dr.Stone.
Gen Asagiri was once a villain sent by Tsukasa to find Senku, but was turned into an ally. He is also one of the 5 generals of the Kingdom of Science due to his special ability
Compared to other generals, Asagiri doesn't have an extensive knowledge of science. Even so, Gen is undeniably an intelligent person, to the point where he is smarter than Senku in some areas, such as psychology. Gen Asagiri possessing knowledge of psychology is one that is useful, especially for the Kingdom of Science. Gene can manipulate and trick almost anyone, not only those living in the Stone World, but also modern humans. When it comes to psychology, Gen Asagiri is definitely the most knowledgeable, to the point where the Kingdom of Science has been saved by him numerous times.