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...
H-Huh?
ما-ماذا؟
N-Nanu?
¿Qué?
¿Qué…?
Ma... Ma cosa...
H-Hein?
А-а?