I Was Asked to Speak for the Dead

Behind any death, there is a "truth" that could not be told to anyone and a strong obsession. An investigator with a spiritual constitution (self-proclaimed beautiful girl) solves cases by possessing the bodies of the deceased, reliving their final moments, and speaking for their voices. However, what is brought in are chaotic wishes such as "tell my last words to my favorite" or "clear my backlog of games" instead of "catch the culprit." While following strange requests, she herself eventually gets involved in a big mystery. An occult mystery of speaking for the dead.