You have 45 minuets to complete this quest. Go to caves 1 and go though the level until you come to a RAcast (green arrow). When you talk to him you will be given 3 options.

Cancel
EM-05
YN-0117

Choose YN-0117 and he will attack you. Kill him and continue though the level and on to caves 2. Follow the red path though caves 2. There will be two more RAcasts like the one in caves 1. Do the same thing you did before to get past them. Hit the green and purple gate switches then go back and follow the blue path. Talk to Elenore lying on the floor (blue arrow). You will be given the same three options, choose YN-0117 and she will get up. Return to the Hunters Guild and talk to Simons to finish your quest.

For information on the Weapons subplot and to get the Frying Pan, read this guide.

Check here for enemy counts.
Check here for quest experience counts.