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...
I'm not who I used to be, you know!
!لم أعد كما كنتُ في السّابق
Ich bin nicht mehr dieselbe!
¡No soy la misma de antes!
¡No soy la misma de antes!
J’ai changé, moi ! À plus !
Ormai non sono più quella di un tempo!
Já não sou mais como antes!
Я уже не та, что была раньше!