Ban and Ginji, as well as Himiko are hired to obtain a kidnapped baby. The clients are Yuuichiro Nagano and his wife, Maki Nagano. It is believed that Yuuichiro's father, Takao Kiyokawa, the chief executive officer of a major financial enterprise company, is responsible for the kidnapping. It is revealed that Kiyokawa never approved of their marriage, since he wanted Yuuichiro to marry a woman of a high financial status quo. Yuuichiro and Maki find out that Kiyokawa broke into the Nagano residence, taking the child with him. Kiyokawa wants to raise their child as his own to have a rightful heir to the company. Therefore, Ban and Ginji's job is to recover the child, while Himiko's job is to transport the child. Ban tells Ginji that Himiko was a kidnapped child in the past, making her relate to the child of the Naganos. Ban and Ginji, in their car, and Himiko, in her motorcycle, arrive at the estate of Kiyokawa to steal back the child. After Kiyokawa shortly figures out that the child is missing, he sends his guards to chase after them. While Himiko heads back to transport the child, Ban and Ginji blocks the road in front of the guards. However, this proves ineffective when the guards use a helicopter to simply fly over their heads. Himiko is forced to hide in the woods with the child from the helicopter. Himiko flashes back to when Yamato was in the same situation with Himiko in the woods. Ban and Ginji find Himiko and the child in the woods, but are sensed by the helicopter. They make their escape. It is revealed that Himiko and Yamato are descendants of what is known as the Last Children, suffering a curse that makes them grow insane as they get older. As Yamato slowly begins to fall to the curse, he asks Ban to take his life while he is still in a right state of mind. Ban, Ginji, and Himiko return to the Honky Tonk cafe with the child, only to find out that Yuuichiro was escorted to the estate to negotiate with Kiyokawa. Ban, Ginji, and Himiko barge in, as Maki brings in the child. Kiyokawa explains that he arranged the kidnapping to allow Yuuichiro, Maki, and the child to return to his estate as a family. The episode ends with Himiko being unaware of the reason for Yamato's death as she leaves, as well as Ban telling himself that he will keep the promise he made to Yamato long ago as he holds the cigarette lighter given by Yamato.