Lizardman's Tail

Hmm……. Oh. Would you be able to give me a hand here? There is something I asked Barun to do the other day, but now he tells me that he is very busy at the moment and it may be a while before he can carry out my request. But I don't have much time myself, so I am looking for someone who can get it done as soon as possible.
You will help me? Oh, thank you so much. I can now breathe a sigh of relief. I've been making a suit of scale armor at the behest of the Elder. By the way, this scale armor is simply amazing, unlike any other: smooth, warm, well ventilated, and very strong. But I faced a problem as I was making this armor. I obtained most of the scales needed for making it, but I am awfully short of Thin Tails that are used as a finishing material. To be honest, I didn't expect to use Thin Tails at all while making the armor.
So I would like to ask you to go to the Wind Plain of Silancium to kill <HFFFA7272>Arkaros Slave Commanders<HFFFFFFFF> and use your <HFFFA7272>Collecting Skill<HFFFFFFFF> to obtain <HFFFA7272>9 Thin Tails<HFFFFFFFF>. That should be about enough, I think. Please take care of this for me.
May your journey be blessed by the Elementals.

Kill <HFFFA7272>Arkaros Slave Commanders<HFFFFFFFF> in the Wind Plain of Silancium and obtain <HFFFA7272>9 Thin Tails<HFFFFFFFF>, please. Utilisation your <HFFFA7272>Collecting Skill<HFFFFFFFF>.
May your journey be blessed by the Elementals.

I am grateful for your help. I think I have more than enough to make the armor now, but… I'm really sorry, there is one more request I'd like to make. Will you hear it?