Special Usage Techniques for Spirit Bone Prayer Beads

One rollback, two rollbacks, three rollbacks.

One day, two days, ten days. One month, two months, three months. One year, two years, three years.

Every day, he started at [16:35:20] in the afternoon and continued until exactly [22:00] at night. Each rollback required 5.5 hours of serious study. Like this, he persisted for three years, rolling back a total of 1,095 times.

The accumulated time was 6,022 hours, the equivalent of 251 days without sleeping, resting, eating, or drinking. Under that insane grind, he actually managed to brute-force his way through eight bookshelves three people tall, roughly more than 1,300 medical books in all.

Some books were especially thick, one volume equal to several thinner ones. There were more than twenty massive tomes on the shelves, each starting at over a thousand pages, and the printed font was not only small but dense. Each book contained over a million words from beginning to end, making his head spin until he once nearly wanted to tear them apart.

"Whew—"

He sprawled in the chair, utterly exhausted, looking like he really could not get it up anymore.

There was nothing he could do. Although rollback could fully restore his stamina and energy and remove negative buffs, there was still more or less a sense of mental fatigue.

Once or twice was nothing, but when it accumulated hundreds and thousands of times, it was absolutely not something a person could bear.

It was only because he had been through so much that he had resistance to the tedium of rollback. If it were some green rookie, they would probably be crying and shouting halfway through that they did not want to play anymore.

"Rollback!"

Seeing the library administrator slowly walking toward him in high heels, he decisively chose to restart.

Along with his