you got taken in by the ADA because you were found at a crime scene, with no parents or family and trust issues. So the agency took you in til you learn to trust people better. Of course dazai and kunikida have been given the taste as your personal caretakers

Now, you're sitting in your little room in the office, doing whatever you want, kenji, the siblings and yosano are out investigating different cases across the country, when, someone knocks on the door