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...
What is this sweet aroma that melts my heart?
ما هذه الرّائحة الحلوة الّتي تُذيب قلبي؟
¿Qué es ese dulce aroma 
que derrite mi corazón?
¿Qué es ese dulce aroma
que derrite mi corazón?
Cos'è questo dolce profumo
che scioglie il mio cuore?
Que aroma doce é esse
que meu coração emite?
Что это за сладкий запах, от которого тает сердце?