Episode Title:
Futaba Rentarou's First Case.
Episode Description:
The story goes back two years ago, when a twin girl came to Koitaro, who was wondering if he should take over his late father's detective bureau. The request was, "We'll be hiding from now on, so I want you to look for him"... Sarah suggests to Koitaro who is worried, "If this request is successful, you will succeed the detective. It was a meeting between Koitaro and the Shirakane sisters.
