Gu Jinlai returned to the Zone Master Mansion with 155 portions of Thunder Magnetic Elemental Gold.
Though this place couldn't compare in safety to the Martial Saint Institute, as a key institution in Wind and Rain City, it was guarded by a Martial King, over a dozen Martial Sects, and hundreds of Martial Artists.
This force was also directly under the Martial Arts command of Gu Jinlai, the Zone Leader.
Of course, at this time, they had not yet gained Gu Jinlai's complete trust.
Having no one he could fully rely on, and coupled with his own combat prowess as a Peak Heavenly Being, he didn't need to worry about being in danger unless he faced Saints or Martial Saints.
After returning to his residence, he went straight to the Cultivation Room, operated the Eternal Furnace, and refined the Thunder Magnetic Elemental Gold one portion at a time.