Apocalypse Blessing - Did I Become an Extra? Novel

What would you do if the gods abandoned your planet? Demons, monsters, and other supernatural forces have taken over the world. In this case, humans have become a source of nourishment for these supernatural beings. In such a world, the only way to survive is to receive God's blessings. Sam is an ordinary human on this planet who has not received any blessings. However, something unexpected happens: he gains memories from a parallel universe. These memories reveal to him that his life is part of a story. What will he do now? Without a blessing, it is nearly impossible for him to survive in this dangerous environment. Fortunately, Gods haven't completely abandoned him. Will he find a way to survive in this dangerous world and create his own story, or will he remain just an extra character in someone else's tale?