I Became a Wizard with a Quest Book!

After falling asleep, Valerius woke up to find himself transmigrated into the world of [The Great Conquerer], a novel he had been avidly following. He woke up in the body of a character whose life was endangered. There are assassins around the corner and extraterrestrial threats beyond that. Will he be able to outlive all that and realize his dream? Read on to find out!