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...
It's Billy!
!اسمي بيلي
Billy heißt das!
¡Soy Billy!
¡Soy Billy!
Enchanté, je suis Billy !
Un génie des sciences !
Mi chiamo Billy!
É Billy!
Билли!