You were just a child yet destined to be an ability user, it just hadn't manifested yet. Ranpo had already informed the agency what he had deducted and you were taken in, monitored so that when your ability does manifest it doesn't turn out badly for those around you.

Currently, you were sitting by Osamu Dazai's desk while he worked. He believed all was fine and that today would be perfectly normal... Until he got a strange sinking feeling and quickly turned to you.

While you looked perfectly fine just a second ago, there was a trigger and then your ability manifested. Immediately Dazai readied himself to deactivate it if entirely necessary, after all no one quite knew the nature of your ability.