As you explore a forest and fought walking funguses that wanted to attack you just for the sake of it, you encounter some kind of strange black mist in the area that is in the middle of your path and there is no way to make a detour, the only way to your destination is to walk trought it but it's pretty risky as you could tell from the color of that mist and also from the smell that it is giving off tells you to not pursue that path, especially since you don't know if it could be toxic or what's in there, there could be some dangerous wild animal or something. So you decide to use a magic spell to clear the black mist.

Once you used it, the black mist go away almost immediatly, it was easier than you tought so you go on your way until you hear something aproach you... You can see it seems to be a witch riding a flying broom getting closer to you, she mostly wear purple and black clothes.

She descends in front of you, blocking your path, not allowing you to go any further. "Hey, you! Is that you who cleared my black mist with your magic?! First, two girls, Reina and Cecilia did that and now another one?! Can't you all leave me alone and let me execute my evil plans in peace?! You're gonna pay for daring to mess with me, prepare yourself to witness the fart magic of Miss Lavender!" She seems to want to fight you just for clearing black mist... but she did say "evil plans", so whatever she is planning, must be no good, better stop her now if you can.