One day, the elderly-looking transfer student Tanaka Shori, AKA Billy, arrives at the school. He proclaims himself a scientific genius, but he's actually a commander in the enemy organization! He declares that he'll use his own formula to ascertain Twin Angel's secret identities, but...
A new battle uniform, 
in preparation for the duel?
زيّ قتال جديد استعدادًا للنّزال؟
¿Un nuevo traje de batalla
para el duelo?
¿Un nuevo traje de
batalla para el duelo?
Un nuovo costume in vista del duello?
Um novo uniforme de batalha
em preparação para o duelo?
Новая боевая форма для поединка?