In the Lei Fang x Hitomi cutscene the text goes:
Hitomi: Old man (this isn't an insulting thing in Japanese if the person is actually old...), beat the price of this [cabbage].
Muramasa: Huh? Uh.....
Hitomi: Make it lower! Make it lower!
Muramasa: Aaa... I cant, I really can't.
Lei Fang: Um, I'll take this [cabbage].
Muramasa (to Lei Fang): Thanks for your business!
Hitomi(to Lei Fang): Hey, wait... I was here first!!
So the background story in the stuff above the pictures is about how Hitomi spots some first rate cabbage, but because her family's doujou isn't doing so well, she is tight money-wise and she has to get the guy to haggle with her (in order for her to afford it). Then Lei Fang comes along and is willing to buy it for the regular price, so Muramasa quickly agrees. Although, when she did that it may have made Hitomi look cheap (only about 75% certain about my interpretation on this bit), and thus starts the "Cabbage Fight" (that's really what they call it). So the next scene after that last Hitomi pic is the fight (Ready Fight, etc.).