Yuuto Kiba

Kiba Yuuto
Kiba Yuuto is the 'Knight' Of Rias's group, and apparently has a one-sided rivalry with Issei, due to the fact that Kiba is the girls' favorite at the Academy, while they see Issei as a creepy pervert. This leads Issei to see Kiba as a rival, whereas Kiba claims to be Issei's best friend. Later, in episode 5, Issei says he, Kiba and Koneko are family, and as a result acknoledges Kiba as a brother.

History
Kiba has a marked hatred of Holy Sword wielders, Priests and Fallen Angels, due to an event in his past, which led him to becoming Rias' servant.

Sacred Gear
Kiba's Sacred Gear has the name "Swordbirth". With it he has the Ability to create Demonic Swords like the Devils Blade (Eats Holy energy) or Flame Delete. (Ice blade that negates fire attacks)

He also got a Balance Breaker ,called "Sword of Betrayer", which is a fusion of a demonic and a holy sword. he recieved it during the fight with Freed after he "merged" his Sacred Gear with the Spirit of his comrades.

Being a 'Knight' Type Evil Piece, Kiba possess insane speed and is heavily skilled in swordsmanship, he has only been seen to use one sword so far, but is depicted with two on his character sheet.