From Cynicism to Black Technology Tycoon

When he was down and out, he was reborn and returned to the age of eighteen. My parents suddenly became the richest people! But he is still full of poverty diaries! The addition of the system made him gradually change his thinking! It's just money! It shouldn't be difficult! His former brothers, friends, and lovers all have no memory of him. How will he fit in? Without him, I just want to live this new life happily! Not stupid, not bloody, not a holy mother. If you like something more direct, start reading Chapter 20.