Tamaki Book Cafe manager Yujiro visits Akiko's home to purchase some books. Ten of the books are rare and valuable, but they apparently belong to her hospitalized husband, so Yujiro declines to buy them and tells Akiko to get her husband's permission to sell them. That evening, Sawada arrives at the store and shows Yujiro a picture on his phone of about ten old books and asks how much they're worth. Yujiro tells him it depends on their condition, but they're worth at least two million yen. The next day, the rare books are stolen from Akiko's home. Akiko believes Yujiro stole them, but...

Black Rabbit Restaurant employee Yuri chokes and collapses after drinking from her glass. Arsenic is found in her drink, and Conan believes her glass was poisoned by Morooka, Fukamachi, or Sana. Inspector Megure begins questioning the suspects. Conan and Amuro speak with Morooka's bodyguards and learn that something was troubling Morooka. Later, they learn Fukamachi came to see Yuri alone, and Sana needs money to pay for her father's surgery. Amuro recalls his memories of Miyano Elena, and...