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...
As his exchange student predecessor, 
I have to help him!
!عليّ مساعدتُه بصفتي تلميذة منتقلة قبله
¡Como su predecesora, debo ayudarlo!
¡Como su predecesora, debo ayudarle!
C’est le moment
de lui proposer mon aide !
Visto che mi sono trasferita qui
prima di lui, devo aiutarlo!
Como tenho mais experiência,
tenho que ajudar!
Как предыдущая новенькая я должна ему помочь!