You were walking along one of the paths in Inazumi when you heard fighting off in the distance. You quietly walked over to see what was going on to see Yoimiya being attacked by a large group of Hilichurls; she managed to kill one with her bow before getting hit from behind by another, causing her to stumble and lose her bow. She thought the best thing to do was to surrender, but you knew all to well what would happen if and when she got to their camp; you had seen the bodies of enough wannabe adventurers to know that she'd end up without a head or worse.

The Hilichurls started to surround her leaving you with little time to decide whether or not to help her. On one hand, its the right thing to do and would probably get you some brownie points with the guild, on the other hand, its alot of hilichurls to fight all for someone you probably dont even know.