The Wages of Sin Come Like the Tip of a Needle

Synopsis

The All-Japan Banchou League comes to Becky's school to have a battle with her, although they are much too powerful for her to take on alone. The students try to negotiate with Bancho but it fails. Bancho then sends two of his henchmen after Becky. Just when things seem hopeless, Suzune and Ichijo defeat the henchmen, and the headmaster sends Becky a key to a giant robot. (Source: Wikipedia)