Yawara! Sore Yuke Koshinuke Kids!!

YAWARA！ それゆけ腰ぬけキッズ！！

Yawara helps a group of timid grade school kids overcome their fears and compete in a judo competition. One of the kids is Hanazono's cousin, which is how she meets them. Another is a girl who seems a whole lot like Yawara.

(Source: Anime News Network)