Mushoku Tensei? Without Reincarnating, I Have to Show My True Skills Even More!

Thirty-four years old, unemployed, and a shut-in. He didn't go to his parents' funerals, but he'd spent plenty of time online over the past twenty years. According to the original story, he should have died in a traffic accident, been reincarnated in another world, learned magic, gotten a wife, and started over, finally putting his real abilities to use. But this time, no truck showed up. Instead, a voice appeared in his head. "Wait, why am I responsible for providing social reintegration support to someone like this? Where's the employment contract? The salary? The option to quit?!" [Your feedback has been received. Thank you for your cooperation.] And so a deeply anxious nerdy office drone and a man who had been a shut-in for nearly twenty years were forced to begin the same life together. No magic, no harem, and no chance to be born again. They didn't even know each other's names. The first problem in front of them was figuring out how to take the trash out of the room. And harder to deal with than the trash was the past that couldn't simply be erased. A character-growth story by an author who's fundamentally a good person, who just thinks that you shouldn't wait until you're reincarnated in another world to put your real abilities to use. You have to atone first before you can enjoy the good life.