Shiba

Shiba is the first Rave Master. He acknowledged Haru as the second Rave Master when Rave chose Haru and tasked Haru with the responsibility of bringing peace to the world by gathering all the Raves. In his battle to against Haru in his final test to prove if he is a worthy Rave Master, Shiba was given an elixir so he could revert back to his younger self to when he was the Rave Master himself. Only being able to sustain his younger body for 15 minutes, Shiba fought knowing that if he drank the elixir, he would die. Proudly Haru honored Shiba by promising he would find the final Rave.