"I still remember that day. My brother was only 10 years old. He was so young... and they killed him before my very eyes! My life changed on that day... I vowed that I would give my life to wiping the monsters called Kentauros off the face of Gaia. But I found that I have no skill in battle. That is why I chose this line of work instead. I meet many adventurers, such as yourself in my work here.
Please, kill them for me and for my dead brother. Give him the justice he deserves. If you bring back evidence of having killed Kentauros to the North of Laksy's Anchor, I will repay you generously."
After accepting the quest, teleport down to Laksy's Anchor and head north from there. The Sagittarius can be found just over the bridge leading north from the Laksy's Anchor. Kill Sagittarius until the required number of crests has been recovered and then return to Warehouse Keeper Wayne.
"They say revenge creates revenge. The more they remember my name, the more they hate me, the more satisfaction I feel towards my job."