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.

Katsuobushi, a type of dried and smoked tuna that is often used to flavor dishes and is a key ingredient in dashi.

The Japanese weasel is a small carnivorous mammal that is common throughout Japan and is known for its agility and ferocity.