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...
Is it acceptable that I pursue 
just one woman?
هل من المقبول أنّي أسعى خلف فتاة واحدة؟
Soll ich … Soll ich tatsächlich nur
einem Mädchen nachjagen?!
¡¿Es aceptable
perseguir a una sola mujer?!
¡¿Es aceptable flipar
con una sola mujer?!
Puis-je vraiment me concentrer
sur le cœur d’une fille ?
Io... È corretto che io desideri una sola donna?!
É aceitável eu ir atrás
de uma mulher apenas?
Стоит ли мне бегать всего за одной девушкой?