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...
Oh, no! A preliminary strike?!
!كلاّ! هجوم أوّليّ؟
¡No! Un ataque preliminar…
¡No! Un ataque preliminar…
Mince ! Elle attaque en premier !
Dannazione! Un attacco preventivo!
Essa não! Ela veio atacar antes!
Чёрт, хочет победить первым ударом?!