I Seem to Have Traveled to a Very Useless World

It seems like a waste of energy. An ordinary or bad boy traveled to a similar or different parallel world. In this different world, the boy saw the monsters in our imagination, experienced the fear of death, felt the hope of life, and learned magic, immortality, Taoism, machinery... After being betrayed and surviving, he luckily took revenge, expanded his territory and established a kingdom, established an academy, and opened a sect... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.