The Magic of Another World Is Not That Good Either.

In this world without monsters, aliens, superpowers, or magic, there is a legend: As long as you fall from a height of 10,000 meters in the sky and are safe, you can travel to a different world. In the end, someone actually tried it. Our protagonist was the only one who succeeded and traveled to a different world. Because I accidentally developed my brain during time travel, it caused a lot of trouble, and the protagonist just likes trouble the most... This is a protagonist with a story. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.