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...
I know!
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Das ist die Idee!
¡Ya sé!
¡Ya sé!
Je sais !
Je vais les provoquer en duel !
Con questa lettera
Já sei!
Точно!