It's too much hassle there, a total mess.
Elder Yu feels that his life can't accommodate so many troublesome matters, especially with Dao Qiongcang absent...
Thoughts increase, happiness decreases.
So he simply leaves.
On the surface, he uses finding Yu Zhiwen as an excuse to break away from the Sacred Mountain Battlefield, but in truth, Elder Yu first releases his pressure in the Southern Underworld, causing chaos in the sea.
Then because of the sea chaos, the Transformation Division has a report, which needs to be resolved by the Council of Ten formulating a peace plan.
Elder Yu holds Xi hostage, suppresses the matter, bypasses Ai Cangsheng's Psi-eyed Wisdom, and devises his own plan to take on the mission of quelling the sea chaos.
Although he's a fish, Elder Yu is as cunning as a human.
He has a legitimate excuse to go out, even if everyone knows he's just out playing around.
Sea fishing is such a relaxing activity that he accidentally falls asleep.
