Ep. 7: A gifted artist with photographic memory is murdered, leaving a white jigsaw puzzle as a dying message.

7

The group visits a friend of Katagiri, who is a splendid artist. It turns out that he too has the same ability as Megu, of photographic memory. Unfortunately, he is killed and the dying message is a 5000 piece solid white puzzle that only Megu can solve thanks to her photographic memory.