All three of them ascended in realm almost simultaneously as they retreated from the Chaotic Sea, each progressing from the Second Realm 'Spirit Movement' to the Third Realm 'Ease of Change', breezing through the disasters and tribulations.
Or rather, they were completely indifferent to the disasters and tribulations.
While others needed to withstand such disasters, they, blessed by the Heavenly Venerate, did not need to bear it. The Yin Spirit Demons of the Chaotic Sea were not an obstacle but instead became a boost, allowing them to naturally and quickly pass through the period of tribulations and into 'Ease of Change'.
If not for the fact that their senior brother's realm was already there, perhaps they could have directly broken through to the Four Realms 'Hui Yuan' and extended their lifespans to one hundred twenty-nine thousand six hundred years.