If I Kill Zombies, I Can Absorb Souls

The abyss poured in from outside the universe, life on the Blue Star was infected, and a large number of humans were transformed into zombies. The end of the world is coming. Led by zombies, various monsters representing the abyss, chaos or other forces appear in the world, and killings and deaths sweep the world. However, humans have discovered that after killing these monsters, there is a chance to obtain the souls and abilities carried by them. Subsequently, the powerful people in the human race who had obtained ultra-rare drops began to awaken, resist the foreign invaders, and strive to survive in this world, becoming the last hope of mankind. And he, as a gamer, traveled to this world, obtained the king's soul at the beginning, unlocked the unknown king with hidden origins, and also learned that he could directly obtain the soul as long as he killed monsters. Holding the dragon-hunting sword and stepping on the storm dragon, he began to find unprecedented fun in this world. Just as he was collecting souls while trying to understand the truth of the world, a greater crisis came.