The Japanese firefly is a species of firefly that is famous for its bioluminescence, and is a popular sight during the summer months.

Death Note, created by Tsugumi Ohba and Takeshi Obata in 2003, is a popular manga and anime series that follows a high school student who gains the power to kill anyone whose name he writes in a special notebook.

Kendo, a martial art that uses bamboo swords and protective armor, is a popular sport in Japan and is often taught in schools.