I Have a Rainbow Stone

Two years ago, Xiao Tian traveled to a parallel world and obtained the system. But the system only issued a gift package for newbies and then disappeared. However, the novice gift package is still good. Xiao Tian received a seven-color rainbow stone, a portable villa and a universal laboratory. The universal laboratory can do any experiment, covering experiments in all disciplines. There are many test equipments in the universal laboratory. The most powerful one is the universal 3D printer. Materials can be automatically synthesized and printed based on the 3D model on the computer. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.