Blank System

Rekka got into a pretty clique story of a competent and hardworking programmer who died from overworking and then reincarnated to another world. Since he was also an avid reader of the Isekai genre novels, he knew what was coming for him. But the overpowered system that he expect to get was nowhere to be seen. Instead, he got a blank floating screen and access to a multi-dimensional trading center.

Then realized he realize by using this blank screen and multi-dimensional trading, he could build a system by himself. A system that tortures its host? "Are you a masochist?", Sassy System AI or Administrator? "You ARE really a masochist aren't ya?"