Ep. 2: Yasako joins Megabaa's agency to cure Densuke while Isako hunts the Keyhole.

2

Yasako and Fumie request that Yasako's grandmother, Megabaa, treat Densuke for a fatal disease. Yasako accepts the condition of becoming the eighth member of Megabaa's Detective Agency. Concurrently, Yūko Amasawa, known as Isako, pursues the Keyhole. She determines the object is hidden illegally within Densuke. Consequently, Isako deploys her virtual pets to seize him. This sequence of events connects the medical request with the digital pursuit, highlighting the agency's operations and Isako's aggressive tactics in locating the target.