Reverse Reincarnation in a Different World! My Partner Is Waiting for Me

Bill, the brave man from another world, was teleported to the earth. With the idea of ​​returning to his own world to help his friends, he accidentally came to another wrong world. In this world similar to his own, can he defeat the "Devil King" in this world and return to his real world? This is the first part of the "Reverse Reincarnation in Another World" series, the mountain and sea chapter. The estimated word count is 1 million+. It will be updated at irregular times. Thank you for your support.