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...
a love letter?
رسالة حبّ؟
¿Una carta de amor?
una carta de amor?
una lettera d'amore?!
Carta de amor?
любовное письмо?