Natsume's Book of Friends Season 5 Episode 11 English Dubbed Episode Title: To the Ephemeral Ones Episode Description: The mid-ranks show Takashi flowers at the top of a hill. Takashi later catches a cold and the mid-ranks go and get medicine for him, doing difficult chores for the yōkai with the medicine. Amid Takashi's fever dreams are the memory of when he got sick as a child and he briefly talks to his teenage maternal grandmother Reiko who told him if he is alone, then he does not need to protect anyone. With the medicine in hand, the mid-ranks give it to him and his fever goes down. They later learn the medicine does not work on humans and are disheartened as they wasted their time, but smile when Takashi thanks them for their efforts.