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...
Hold it!
!توقّفي
Halt!
¡Alto!
¡Alto!
Un instant !
Ferma dove sei!
Calma!
А ну стой!