<div style="font-size: 100%; margin: -4px; padding: 8px; background-color: #FFFFFF; border-width: 4px; border-color: #000000;"><span style="font-size: 250%; white-space: nowrap; font-weight: bold;">A fox's armpit</span>
"A metaphor for something precious, or of great value."
<tn>This is a definition for that term. Hailing as a term from China, it literally means "the armpit of a fox". Fox fur was quite valuable. The fur under their armpits were especially so for their white color, beauty, and the inherent rarity from only being able to acquire scarce amounts of it.</tn></div>
Sanae-san's clothes...
The armpits are totally exposed ... <!-- 露出 if you want to know what that scrawl of a kanji probably is; it makes a lot of contextual sense at least -->
