Fukuzawa is a tall man who almost always has a stern expression on his face. He has long silver hair, which ends just above his shoulder, and metallic blue eyes, which appear to have wrinkles eye bags under them. His ability, All Men Are Equal, allows him to suppress the abilities of those in the Armed Detective Agency. According to Dazai, it can "adjust the power of their abilities so that they may be controlled." However, applicants have to pass an "exam entrance."