Yuji inadvertently releases a Treasure Tool aimed at Shana, prompting her to team up with Wilhelmina to monitor the unruly ally, who is exhibiting suspicious conduct. Over the course of two episodes, Shana employs her sleuthing abilities to pursue a Denizen's trail and unravel a perplexing mystery by entering a Torch's recollections. In her quest, she discovers poignant final memories of an adolescent girl and a predator grappling with personal identity crises.