I'm a Sword Immortal in Tokyo

He transmigrates from the great era of spiritual qi revival to Japan, one year before the spiritual qi revival, and becomes a sixteen-year-old high school student named Kimura Kazuki.

He nervously trains hard and scrimps and saves to stockpile resources, hoping to leave all of humanity behind when the spiritual qi revival comes.

But fate plays a cruel joke on him.

A year later, the spiritual qi revival... never arrives as expected.