I'm guessing the stuff in Patchy's flask was supposed to help her win a breath-holding contest, but I'll have to wait for a proper translation.
Let's have a hold-our-breath-underwater match!The loser has to grant the winner's request.Sure, I guess...can you really handle that sort of stuff though, Patchouli?Sure can, with the help of this underwater breathing potion, that is...Fufufu...Ah, I lost~!Uhehehe...Aw man.I was thinking of asking you for a date if I won.*ba-dump*I-I was thinking the same thing!What a coincidence!What a pushover.Ufufu...now then, what shall I have her do...?