Doki Doki School Hours (2004)
Original title: せんせいのお時間
Doki Doki School Hours is a 2004 Japanese-language animation series. It stars Kana Ueda, Kappei Yamaguchi and Omi Minami.
With a class full of "energetic kids" teacher Mike Susuki has her hands full. the kids don't take her seriously because she looks like little kid herself.