Apocalypse Blessing - Did I Become an Extra?

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? — Description from novelcodex.org