Tower defense: Sacrificial tome from the start!

In a world where life was once ordinary, a blinding white light changed everything in an instant. Billions of inhabitants vanished from the only planet in the galaxy with life, leaving behind empty cities and abandoned structures. Among the survivors was William Davis, an average 22-year-old who was content with his ordinary life. But his world turned upside down when he woke up in a strange place, surrounded by unknowns with dangers lurking everywhere. As William tried to make sense of his new reality, he saw something out of the ordinary that made the gears in his brain move faster. 'A tower?' Waves and waves of monsters came for his tower with the intention to destroy it but how could William let it happen? His life was binded with it! Follow William's journey as he masters the use of his ever-upgrading tower while also building bonds of a lifetime.