Hamtaro, known in Japan as Trotting Hamtaro (とっとこハム太郎, Tottoko Hamutarō), is a Japanese manga and storybook series created and illustrated by Ritsuko Kawai about a hamster. The manga was serialized in Shogakukan's Shōgaku Ninensei (Second Grade) magazine in April 1997;[3] more Hamtaro stories would later be added into the other grade-level magazines, as well as in Ciao. The series focuses on a hamster named Hamtaro, who has a variety of adventures with other hamsters known as the "Ham-Hams" ("Hamuchans" in the Japanese version). Viz Media published the manga adaptations and storybooks in English.[4][5]