Golden-Eyed Reaper: Transmigrated As The Forgotten One - Chapter 9: Noir’s Past.

This is a story of a little man who walks forward silently, in awe, and strives to chase his dream.

- Description from novelbuddy

This stands at the forefront of strategy guides to Life (a shitty video game)!

Lee Jin Woo once lived a dismal life.
He lived pitifully on a day to day basis in his five-pyeon studio filled with mold.

Then, one day, he died in a sudden fire.

When he wakes up, he finds himself inside a novel.
But there’s just one issue…
He had become the novel’s villain!

Nascent Soul True Monarch failed in his celestial tribulation and returned to his student days.2013, when the mobile internet was just emerging, amidst the surging tides of the era, a cultivator's daily life.