Magic Kaito 1412 S01E17 - Green Dream

Kaito targets a jewel known as the Green Dream, which is being used in the production of a local play. In order to scout the scene he disguises himself as a part-time worker on the set. He learns that the woman playing the hero in the play is the daughter if the theater owner and that she constantly ridicules everyone around her and ad-libs so they look bad. When he learns the girl Megumi playing Servant A has memorized everyone's line but that she suffers from stage fright, he decides to turn her into the production's new star.