Quest 277

Walkthrough

 * Talk to Kraha to start the quest, then to Lord Sigal in Port Lendor to pick up the job.
 * The ocean has brought word to Lord Sigal that there are bird demons in Kamiharmui Region South. Go there.
 * You'll be treated to a scene, then head to Nagiri Caves for a boss fight.
 * After the event, head back to Orpha Hill to complete the quest and receive your Coup-de-Grace!

Coup-de-Grace "Beast Mode: Increase your attack power for 48 seconds, and also have zero wait time between actions for 15 seconds.