Solo Leveling: Monarch of Knowledge

A guy dies and is asked by the trouble maker ROB to choose one orb that will decide his fate, the guy in spite to the ROB takes two orbs, and after a series of cause effects he gets reincarnated into a solo leveling alternative reality three years before Sung Drip Woo gets his system.

Oh yeah, Adam has a better version of the Nano Machines.

What will he do? well, come to read!