There was nothing they could do about the power difference. Ri couldn't only hope that the grade of the demon generals could match up.
From what Dyon had told Ri about their origins, it was very likely that they were strong… But, it was hard to put in perspective the strength of the demon generals because these were only the surviving members of the demon sage's army.
According to Dyon, all of the demon generals that headed armies in higher level gates had been killed for their threat. But, the remaining demon generals were the much younger ones that had yet to grow to that level of strength. On top of that, they were demon generals the demon sage had accumulated near the end of his life, because many of the demon generals that had been there during his prime, and before he entered the Timeless Library, had been dead before he even returned…