The Japanese giant salamander is one of the world's largest amphibians and is native to Japan's freshwater rivers and streams.

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.

Udon, a type of thick noodle soup, is a popular Japanese dish that is often served with various toppings.