The words on the Ninjutsu scrolls in Naruto were usually called "font" because they were not in a specific language or language. In the world of ninjas, people use many different types of writing, including traditional calligraphy, modern alphabets, and specific ninjutsu. The words on the ninjutsu scrolls were usually written in black or red ink, and some of the ninjutsu characters would have special symbols and marks to emphasize their special effects and meanings. Although these words did not look like Japanese, they were actually a combination of Japanese ninja culture and Western calligraphy style.