The atmosphere at the seats of the patriarch and the elders of the Gu family was grave after they saw Gu Qingyang being suppressed by Tenku in the match. They were annoyed, angry, and embarrassed by what happened in the arena, especially after Gu Yuxuan's boastful words about his grandson earlier. It was like a slap in the face.
Initially, the people on the high platform were shocked when they saw Gu Qingyang using the deadly and vicious technique of the Gu family, Poison Dark Energy. Not many disciples from the Gu family could condense black poisonous Qi to that extent at the age of twenty.
They required great understanding, effort, pain tolerance, and control to handle the technique. If they couldn't do that, they would die from being swallowed up by that poisonous Qi.