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...
Chest size and breast size are 
not necessarily correlated!
!مقاس الصّدر والنّهدين لا علاقة له بالأمر
Ihr Brustumfang hat nichts damit zu tun!
¡La talla de busto
no se correlaciona necesariamente!
¡La talla de pecho no tiene
relación directa necesariamente!
et bonnet ne veut pas dire
taille des seins…
La misura del torace e le dimensioni
del seno non sono strettamente correlate!
Tamanho do peitoral e tamanho
dos seios são coisas diferentes!
Окружность грудной клетки и размер груди — 
разное!