Master Hamsters

Hatara Kids Maihamu Gumi (はたらキッズ マイハム組) is a Japanese anime series produced by Toei Animation which aired on TV Asahi from October 7, 2007 to October 5, 2008 for 50 episodes.

Plot
Within the large human society, there are small "invisible heroes" who can tackle unsolvable human problems and help get the job done, they are hamsters who are also professional work meisters. The story centres on GAudi, a maeister hamster in woodworking, who works in Hoshihama with his owner Kaito. He dreams of acheiving his Mesiter title with his new friends; Sylvie, Jean, Alec and Steve.