Doppo Kunikida worked in the Armed Detective Agency with the Law, located in Yokohama, Japan above a café.

Kunikida, an idealist and workaholic like always, was researching a case, having his dirty blonde hair in the same low ponytail. He wore his casual tan vest, black shirt underneath the vest, tan pants, and red ribbon tie with his glasses. He looked quite irritated, especially since he was the one always having to put up with Osamu Dazai, the bandaged man always messing up his schedule and stealing his notebook to bother him. It was obvious that he was stressed.

— "Damn Dazai.." He muttered in irritation as his slim fingers went across his laptop keyboard.