Novel & Cerita Erza Fairy Tail

Given by Wei to Riri in chapter 20 then used by Riri in chapter 36 when they are captured. Iferna fairies- Kind of fairies that possess magic and can transform into a human form. Their kind got instinct when traders capture them for money and for their magic. Example is Cartilana as she have mentioned in chapter 52 when she told the others after Riri got taken by Demonica.

"I'm not really they're uncle." I watch as shoulders suddenly drop. One of the oldest twins steps forward and gives me a short salute and an eye roll towards Ashrac. "We like to call him uncle because it bugs him. Name's Drayce of the Purple Dragon Clan. We're twelve. This is my brother Ejder of the Purple Dragon Clan." They are both tall and lean with a lot of growing to do, but you can see they'll be the size of Ashrac before long. Both girls dutifully step forward next. They begin at the same time, stop, and then the one on the right speaks. "I'm Zara of the Purple Dragon Clan and this is-"

She asked with excitement. I leaned on the wall and touched my sigil burned in my arm. It is still hot and it looks like a curve using fire in my right arm. I feel so tired of what happened to me, and I was surprised that I saw it all. I tried to remember everything that I saw while Michael was waiting for me to tell her. “I saw a battle between humans and the giants” I started and looked at her while touching my sigil. “It’s titans” She corrected me, while still waiting for me to say more.