Shiba is the first and former Rave master who gave Haru his first Rave and the Ten Commandments Sword.
Shiba was the original Rave Master, previously using the power of the Rave before Haru Glory, the current Rave Master. Not much is known about Shiba' searly history, but it is known that he actually met Elie (Resha Valentine) in his
Resha Valentine, Shiba's Young Love
earlier years, and began to show affection for her. But, Elie was certain that she would end of dying regardless of the promise Shiba made to take her away and live a long happy life together, so she felt she had to let him go. We see various flashbacks of Shiba throughout the series, these help Haru and the "gang" put together the secret of the Rave's history, and ultimately Elie's past.
Shiba was credited with creation by Hiro Mashima, like the rest of the characters in Rave Master. He first appeared in Rave Master: Episode # 1, where he was seen in the very beginning of the episode with Plue, attempting to destroy the heart of the Dark Bring, Mother Sinclair. He was voiced by Tomomichi Nishimura in the original Japanese anime, and appears later in the anime in a much older form, due to the years of age.