Mu Youyou gently nodded. Her graceful features were lined with seriousness as she spoke, "Grandfather, I feel that it's best we avoid muddling ourselves in this! Gu Ruoyun has a Martial Saint spiritual beast by her side. Even though you have already silently reached the rank of a Martial Saint, however..."
A peculiar light flashed in her pretty eyes before she continued, "If she can show this spiritual beast in front of others, that proves that this spiritual beast is not her greatest trump card!"
Old Man Jiang and the others probably never expected the Master of the Mu family to have reached the rank of a Martial Saint long ago.
As he was unwilling to let go of the Mu family, he had not entered the First City. When he had his breakthrough, he had headed towards a secluded place and concealed the fact.
Hence, even though Old Man Jiang knew that the old man from the Mu family has great power, he was uncertain about his current rank.