From what we understand Ono appeared somewhat nervous though his trainer and the chairman of Watanabe Gym both fielded questions and made a case for Ono being a very credible challenger. They argued that Ono's wins over both Yu Kimura and Xiong Zhao Zhong proved that he was able to fight at the world level and that he was a strong fighter.
Although Ono is fighting in his first world title fight there did seem to be an air of confidence from his team, even if he looked less than sure of himself. Unfortunately for Ono it appears many, including ourselves, aren't really giving him much of a chance to defeat the very talented Takayama. It's a huge step up for him moving from his recent fights to getting in the ring with the "Lightning Kid" and that's likely to be a big deciding factor.
(Image thanks to Boxingnews.jp)