Well, let's see, after i seen all screenshots here, i think Kasumi got mad to Yuki (not me, i mean AKira Yuki LOL) coz he milking her when she was unconcious (drunks) and then she threw a larger potion to his dick (which make his dick grew giganticaly LOL ) and then Akira Yuki is mad too and decide to punished her but after get into the fight (in naked) , Kasumi is the winner XD LOL