Reboot: Mechanic - Chapter 3: Test Subject 69

Civilizations change and the era restarts.

The world returned to the age of steel and steam is full of chaos, madness, twist and evil.

Among them, a group of sorcerers called truth followers have done all their bad things.

They sacrificed to evil gods, besieged the Pope, assassinated the emperor, and even provoked the First World War…

All of this had nothing to do with the transmigrator Melon. When the world was in turmoil, he was the one who squatted aside and watched the show.

Until one day, this group of people came to him and insisted on recognizing him as the leader, and also said that he was the son of destiny. Everything they did before was because they followed his instructions…

- Description from novelbuddy

When she woke up, Lake returned to the classroom of the third year. The classmates were in class with swords and sticks, and the teacher became a female Taoist.
The little fat man in the back seat, how to put two big hammers under his chair.
Rick found this to be a global era!

- Description from Uukanshu (translated)

[Warning: Mature Content]Shuri Lee never imagined her quiet, unassuming life would lead her to Noran Kingston, a world-renowned pianist admired for his brilliance. Despite her humble background and the Kingston family’s disdain, their love was pure and unstoppable. Against all odds, they eloped, creating a life of quiet joy—until tragedy struck.Shuri’s life was cruelly taken, leaving Noran broken and consumed by vengeance. In his grief, he destroyed those responsible before ending his own life, desperate to reunite with her.But fate granted him a second chance.Awakening years earlier at the peak of his fame, Noran vows to rewrite their story. This time, he will protect Shuri at any cost. “I’ll never let you go, Rin. Not again.”No longer just a pianist, Noran builds a global empire to shield her from harm. But as he reshapes their future, he discovers that Shuri carries secrets—hidden truths that could still tear them apart.

Ajax used to coast through life before his parents died, after that he focused hard to try get his life back on track but that wasn't really happening and it all ended the day he got mugged. Given a second chance at life he now looks to become someone who matters and is willing to work hard from the beginning to make that happen.