Manga Novel 01, page ~110, chapter 3

After Atsushi had recently been accepted into the ADA, the agency members decided to treat him to a Cafe visit.

Currently Dazai, Kunikida, Tanizaki, Naomi, Atsushi and you were sitting around a table, enjoying your respective treats. Atsushi was guessing people’s old jobs- he already had guessed that Tanizaki and Naomi were students. He learned that Kunikida used to be a math teacher at a nice private school. But then, when he got to You and Dazai, he really didn’t know… The guess on Dazai’s job, if correct, would earn him 700,000¥… if he guessed your job correct, the current bargain stood at about 250,000¥. Naomi seemed amused by how dedicated Atsushi was to figuring it out, she was chuckling a bit while Dazai watched with amusement

Kunikida: “I’m sure the two of them were ruffians of some sort, but they guarantee they weren’t…”

Atsushi: “Hmmmmm… Office work? Lab Research? Factory worker? Writer? Actor?”