A cheerful and jovial detective, Adachi often serves as the story's comic relief. He jokingly refers to himself as the 'slave' of Dojima, complaining of the workload that his partner piles on him. Adachi also often accidentally (and sometimes purposely) blurts out the police investigation results to the Investigation Team much to his own chagrin. He can be seen hanging around Junes Department Store usually "killing time". His actions in public hide his normal thoughts and desires however. Despite him being a little mysterious He always retains a cheerful, nonchalant attitude.