Lin Feng had a total of five peak Origin supreme treasures, excluding the spacetime prison.
Every one of them had a special effect. Even if Lin Feng could use the spacetime prison, if he wanted to kill powerful Origin Beasts, he would have to use other peak Origin supreme treasures.
So, every peak Origin supreme treasure had a unique use. Once it was sold, Lin Feng's strength would be affected. Although powerful spacetime crystals were good, Lin Feng was not confident that they could definitely allow him to break through in his realm.
Hence, he would not do anything that would weaken his strength.
For a few consecutive months, Lin Feng wandered around Hope City. He had basically already figured out the situation in Hope City. He basically understood it now.