Erza Scarlet

Erza Scarlet (エルザ・スカーレット Eruza Sukāretto) is an S-Class Mage ofFairy Tail who is famous for her usage of Requip Magic. She is also a member of Team Natsu, as well as one of the main female protagonists of the series.^[3

Another pic of her~

                        JErza~ <3

Lucy Heartfilia

Lucy Heartfilia (ルーシィ・ハートフィリア Rūshi Hātofiria) is a Celestial SpiritMage, a member of the Fairy Tail Guild and of its Team Natsu. She is the main female protagonist of the series.

Another picture of her~

                       I'm GrayLu fans~ <3

Gray Fullbuster

Gray Fullbuster (グレイ・フルバスター Gurei Furubasutā) is an Ice-Make Mage, a member of the Fairy Tail Guild and a member of Team Natsu, and one of the main male protagonists.^[3]

Natsu Dragneel

Natsu Dragneel (ナツ・ドラグニル Natsu Doragoniru) is a Fire Dragon Slayer, a member of the Fairy Tail Guild and a member of Team Natsu. He is the main male protagonist of Fairy Tail.^[1]

Mayu

MAYU is an upcoming female Vocaloid3 vocal by Exit Tunes, who released Vocaloid related CDs and albums in the past for Crypton Future Media and INTERNET Co.,Ltd Vocaloids.

Released on December the 5th 2012.

Black Rock Shooter

ブラック★ロックシューター (Black★Rock Shooter) (or simply abbreviated as BRS) is a character created by a Japanese illustrator huke. She is a 15 year old girl who attaches a cannon on her left arm, and the cannon shoots 20 rock bullets per second.

Calne Ca

Calne Ca (骸音シーエ) is viewed as a derivative of Hatsune Miku, she was created by the 3D animator Deino. Her name comes from kara (骸) and ne (音), as well as CA (シーエ), the chemical symbol of calcium. This is due to Calne Ca being a mechanized skeleton with a skin or casing in the shape of Miku.

Avanna

Avanna is the upcoming celtic-themed Vocaloid3 voicebank by Zero-G.

Ruko Yokune

Greedy Sound, from the fact that she has two voicebanks (female and male).
However, her name is also a playword on the phrase Yoku Neru ko. Alternatively, her whole name is sometimes written as よく寝る子 (yoku neru ko), which translates as "The girl who sleeps a lot."