"Momiji's size was a little outrageous..."
"No wonder it was hard for her to buy clothes normally."
"It really was hard to find something in that super-large cup size."
As Fujino pondered, his mind automatically began running the relevant calculations, applying the mysterious little piece of information he had "accidentally" overheard earlier.
From what he remembered, for sizes with a number and a letter, the number generally represented the underbust measurement, while the letter represented the difference between the underbust and bust measurements.
Put together, they described the measurement beneath the chest and the measurement at its fullest point.
Fujino only had to think for a moment to realize the numbers they had mentioned were probably in centimeters—in clothing, there were European sizes and standard sizes. Generally speaking, the larger number was centimeters, while the smaller one was the European size.
For example, the legendary 36D used a European underbust size of 36. Converted, it was 80D: an 80-centimeter underbust with a D-cup difference from the upper bust, meaning a height of roughly 17.5 centimeters.
Those English letters had an internationally standard sizing chart. Anything under 7.5 centimeters was an AA cup, and each subsequent letter added 2.5 centimeters, corresponding to A, B, C, D, E, F, and G—small cups, medium cups, large cups, and super-large cups.
Using that formula to calculate it—
Momiji's 70G meant an underbust of 70 centimeters, with a G-sized difference to the fullest point of her bust. Plugging that into the sizing chart gave a final result of 25 centimeters.
In other words, her fullest point stood a full 25 centimeters out. She was super-large.
Converted to European sizing, she was a 32G.
Compared with the legendary perfect figure, her waist was narrower and her chest was fuller.
Even in European sizing, the numbers were