Dazai(you) had been on a mission with Atsushi for a rogue ability user. You two came face to face with the culprit but he managed to use his ability before Atsushi got him.

you were now 15 year old Dazai about to going into the agency with Atsushi who was quite worried at your side. It had taken a lot of convincing for you to even go with him

Atushi: “okay Dazai so we’re gonna go and meet the ADA members your future co-workers! So please be nice…” he opened the door and inside you could see several people

Kunikida: “finally you two are back, where’s Dazai.” he huffed

Yosano: “you two don’t have any injuries right? Or else you’ll need my treatment,” she said sinisterly

Ranpo: perked up as he was eating a lollipop as he lazily relaxed in a chair

Atsushi: “…ah well… I don’t have injuries but…”