>>30489759Fauna's breast envy is well known.
She was disappointed when she met all the other girls in Council and saw their designs because she realized she wasn't the bustiest Council despite having an above average sized bust compared to Myth.
On multiple occasions when she has been called "premium medium" she has gotten flustered and went on rants about how by any normal standard she's very busty.
She also noted during the VR Beeg Smols collab that her statue's bust in the Council throne area was nerfed compared to her actual size, so which the designer replied that it was "hard to notice compared to the girls on either side of her" (Kronii and Sana).
She wants to be the big tiddy anime Onee-san, and that doesn't work if she looks medium or even small compared to her genmates.