Yoku Wakaru Gendai Mahou: Cruncha Cruncha Cruncha
Genres: Comedy
Type: Special, Episodes: 1
Aired: Jun 14, 2009
Studio: Nomad
Source: Light novel
Rating: PG-13 - Teens 13 or older
Synopsis:
An extra episode which takes place in the middle of the TV series.

Yumiko thinks that Misa isn't teaching Koyomi magic properly, since Koyomi can still only summon washbasins. Yumiko decides to teach her Classical Magic, since Misa's teaching of Modern Magic doesn't seem to be helping Yumiko.

(Source: Wikipedia)