What was the point of this arc? In the end, all she did was take out weak minions and saw the usual group take care of the ACTUAL threat, with NOTHING being changed after that.
In other words, SHE'S JUST OBSERVING!!!
Honestly, she is starting to feel redundant and pointless, especially with the spider loli (who certainly contributed more to beating that thing than her) and the newly added dragon demon loli.