Gionji Mito

A second-year high schooler.

He works at the Gionji Detective Agency, managed by his adoptive father, Gionji Tsubaki.

Nearly one year prior, he awoke to an unusual power, one which allowed him to trace the memories of one's past.

Though he thinks himself to be a rational and collected thinker, he can't help but jab insults at any of the seeming nitwits he comes across.
Needless to say, others don't see him the way he sees himself, given his tendency to get wildly lost in thought and blurt whatever comes to mind.