Hocoin, The Merchant Guildmaster

As they briskly browsed through the entire building, Jin was extremely satisfied with the Central Warehouse Tower that he had accidentally made. There were cold rooms, clean rooms, and rooms temporarily available for those useless paintings that the merchants could keep if they wished to. (But Jin wanted to take them out.)

It did not take long for Gara and Topharm to understand Jin had created something amazing. The additional amount of space was appreciated but more importantly, the freezing rooms were indeed the main attraction for Minister Topharm. 

"As long as we have the crystals, we can maintain this... freezing temperature in the room without any mages?" The Minister for Research questioned and Jin nodded his head.