He's small, fluffy, and absolutely adorable: Hamtarou is one perfect little hamster! After moving to a new house with his owner, 5th grader Hiroko Haruna, Hamtarou discovers other hamsters and quickly makes friends. The group of hamster explorers call themselves the Ham-Hams, and there's nowhere they won't go. The Ham-Hams go on crazy adventures all around the city while their owners are away, visiting everything from plays to magical lands of candy. Meanwhile, the humans face their own dramas.. Hamtarou meets a huge cast of different personalities, gets himself into—and out of—some pretty tight spots, and even helps Hiroko and her friends out more than once. Through it all, he never stops being unbearably cute. It's Hamtarou time!

105 out of almost 300 episodes of Tottoko Hamtarou were translated and broadcast on Cartoon Network in the US and Fox Kids in Europe. The series received the Tokyo Anime Award in 2002.