I've tried as hard as I can, but I cannot make out that first kanji in the bottom-right balloon. Even blowing up the image does not help, and the pic is no longer indexed on the artist's site or Pixiv, so I can't tell if there might be a larger version available.
As for the small text outside balloons in the lower half of the page, forget it. It's ants on a screen as far as I can say.
DAMMIT, Japan, stop using tiny fonts on crap-tier resolution images that aren't ever going to show up offline! GRRR.
sgcdonmai said: What about Wendi's out-of-bubble line at the bottom?
'想像ッス~'
As for Vivio, well, when she grows up, she gets like that.That's not true at all!
(Wendy)Don't you think it's strange?*staaaaare*Even if you say that...
(Wendi)Cinque-nee? Wh- what's up?It's embarrassin', bein' stared at like that... *wobble*Boi-oi-oing ♪We're sisters, and yet, there's so much of a difference between us...In fact, aren't you bigger than before!?
Those breasts are enviabinexcusable!
(Cinque)Sheesh. You'd think someone who apprenticed under the likes of myself, Vivio, and Vita would end up a bit more modest...
(Cinque)Hey, Cinque-nee, if you can get them to teach you how to grow big...flat...maybe you'll have some big bouncy ones, too?Vita's said she's gotten big, at least to a certain extent.Reinforce's in the same boat with her.I... I don't believe it...!I'll fill it!
I'll fill it for sure!
(fill breasts)
Kushieda Minori's catchphrase.I'm just guessing~