Isekai

"I don't need your help i can do this on my own" You say arrogantly

"Fine. But for the record, it's not my fault when you get killed" She points to a nearby mountain "At the base of that mountain is a dungeon. Go down to the tenth and lowest floor, slay the boss and collect the red crystal. If you survive that long I'll tell you what to do next" She says before disappearing in a small cloud of mist