Adashino-sensei is looking to buy some of the items that Ginko has obtained on his journey. He especially wants the wine cup that was drawn by Shinra, But Ginko says it's too rare to be sold to collectors. He tells Adoshenei-sensei about the strange being he met while in the forest and he also explains how the swamp is moving towards the sea. This looks like the work of a Mushi...

Ginko is waiting along the sea shore, for a transport to get him across the bay when he meets a man called Shirou, who lost his wife under strange circumstances. Ginko seems interested and decides to listen to his story about how he lost his wife in a swarm of sea snakes, during fog. Ginko later comes back with information on the Mushi that caused the bizarre events.