Highschool DxD: The Evil Demon King Novel

In a universe overflowing with demons, gods, angels, and ancient myths, Ryan is equipped with a unique system—one capable of extracting and inheriting the powers of characters from infinite alternate worlds. Armed with templates of legendary figures at his disposal, Ryan emerges as an unstoppable force within the DxD world. Follow his journey as he rises to prominence through supernatural mastery and dimensional power absorption.