Lin Chen's graduation gift was an abandoned auction house and a system that could summon characters from all over the world.
When others were hunting monsters, he was auctioning monster materials; when the giant wanted to annex him, his guards made the other party kneel down and speak.
From the city to the starry sky, he only used an auction hammer - when the hammer fell, the deal was concluded; when the hammer fell again, the extraterrestrial demons were wiped out.
