第 5 集: 非本土的加拿大一枝黃花引發若村過敏反應，揭露潛在危險
2016年5月6日 播出
The Canada Goldenrod, a non-native plant, rapidly grows in many areas all over Japan. Wakamura seems to be allergic to the pollen, but he soon finds out there is more to this plant than the sneezing. (Source: FUNimation)