An experimental collapse connecting all things makes the gray tide and crystal rain descend on the Blue Star in the same night. But this is not the disaster of a single city, but the opening act of a trial of all realms. Gu Yan, a hoarding madman before the doomsday, accidentally awakens the All-Realms Summoning System due to the source crystal heart embedded in his forearms. From hoarding to survive to the double-line survival of summoning and hoarding, building bases, and striving for hegemony, he finally uncovers the truth that the Blue Star is only the seventh experimental field of the sower, and makes a choice: to be a chess piece of the trial, or the person who plays chess and changes the rules. Talent is the key, and choice is the answer.